Capturing the essence of your senior year through photographs is essential, as these cherished memories will last a lifetime. It’s vital to ensure your senior portraits reflect your personal style and showcase the perfect blend of sophistication, style, and class. By carefully preparing for your photo session and selecting the right outfits, poses, and backdrops, your unique personality will shine through in every image.
To make the most of your senior photoshoot, consider a few essential tips. Make sure to finalize your wardrobe choices in advance, experiment with your hair and makeup, and be well-rested on the day of the session. Additionally, bring necessary props, plan your locations, and maintain open communication with your photographer, as their expertise can help you decide on the perfect pieces, colors, and styles that best represent you. Remember to include a variety of outfits that reflect your taste and interests, carefully choosing colors and patterns that complement your surroundings. With these considerations in mind, your senior pictures will serve as a beautiful reminder of this special time in your life for years to come.
Flowy Long Sleeved Black Dress And Sandals
A flowy long-sleeved black dress paired with stylish sandals is an excellent option for senior picture outfits. This timeless ensemble creates a graceful and elegant appearance while keeping in line with the latest fashion trends.
Flowy dress: Wearing a flowy black dress with long sleeves adds a touch of sophistication to anyone’s outfit. The fluidity of the fabric creates a flattering silhouette and allows for natural movement during the photoshoot. Black is also a classic color that never goes out of style, making it a wise choice for senior portraits.
Sandals: To complete the look, we recommend pairing the dress with a beautiful pair of sandals. There are numerous styles to choose from, such as:
- Flat sandals for a comfortable, casual yet chic look.
- Wedge sandals to add height and elongate the legs if desired.
- Strappy sandals for a more sophisticated touch.
Regardless of the type of sandal chosen, we advise selecting a color that complements the black dress and the overall theme of the photo shoot.
In summary, a flowy long-sleeved black dress combined with stylish sandals showcases an effortlessly elegant style, making it an ideal choice for senior picture outfits.
Tweed Camisole Dress Over Black Turtleneck And Knee High Boots
As we look for stylish and sophisticated senior picture outfits, a tweed camisole dress over a black turtleneck is an excellent choice. Paired with knee-high boots, this ensemble embodies a timeless yet trendy look that will make a statement in your senior photos.
For a polished finish, consider incorporating the following elements:
- Blazer: Adding a blazer to the outfit creates a more professional appearance and adds an extra layer of warmth for outdoor photo sessions. Opt for a matching tweed or a complementary solid color to maintain a cohesive look.
- Button-down: Wearing a button-down underneath the camisole dress in place of the turtleneck is another option. This choice offers more versatility and customization in terms of color and pattern, allowing you to showcase your style.
When choosing jewelry and accessories, we recommend keeping them minimal and classic to let the outfit speak for itself. As you prepare for your senior picture session, remember that confidence is key. Embrace your unique style and let your personality shine through in your photos.
Red Turtleneck Blouse And White Botton Mini Skirt
In our quest for the perfect senior picture outfit, we cannot ignore the classic combination of a red turtleneck blouse and a white button mini skirt. This outfit highlights a timeless elegance and showcases a sense of style that can make your senior pictures stand out.
The red turtleneck blouse creates a bold statement and adds a pop of color that instantly draws attention. It’s a versatile piece that can be paired with various bottoms, making it an excellent addition to any wardrobe. When selecting a blouse, consider factors like fabric, fit, and neckline to ensure that it complements your figure and personal style.
Paired with a white button mini skirt, this ensemble evokes a sense of youthful energy and playfulness. The skirt’s crisp white tone adds a touch of sophistication and contrasts beautifully with the vibrant red blouse. Make sure to choose a skirt with the appropriate length and fit to keep the outfit age-appropriate and comfortable for photos.
To complete the look, consider adding some simple yet elegant accessories such as:
- Dainty necklaces or bracelets
- Classic stud earrings or small hoop earrings
- Comfortable and stylish footwear like ankle boots or ballet flats
- A small belt to accentuate the waistline
We hope that this outfit idea inspires you to create a memorable and stylish look for your senior pictures. Remember, it’s essential to choose an outfit that reflects your personality and fashion sense while being comfortable and easy to wear during your photoshoot.
Square Neckline Mini Dress With Floral Design
When choosing senior picture outfits, we recommend considering a square neckline mini dress with a floral design. Floral prints are both timeless and versatile, adding a touch of elegance and sophistication to your photos. The square neckline helps highlight your collarbone and shoulders, creating a flattering silhouette.
Here are a few key details about a square neckline mini dress with a floral design:
- Style: The dress typically features a fitted bodice and a flared skirt that ends above the knees.
- Material: Common materials include lightweight, breathable fabrics such as chiffon, cotton, silk, or satin.
- Floral Design: The prints come in various styles, ranging from small, delicate flowers to bold, oversized blooms.
- Color Palette: You can choose from a wide range of colors, including pastels, bright hues, or rich, earthy tones.
- Accessorizing: To enhance the outfit, consider adding a statement necklace, a thin belt, or a pair of stylish heels.
In summary, a square neckline mini dress with a floral design can be a fashionable and charming choice for your senior pictures. The combination of the elegant neckline and vibrant prints will ensure you look stunning and memorable.
Off-the-shoulder Red Mini Dress
When it comes to senior picture outfits, an off-the-shoulder red mini-dress can be a stunning choice! This type of dress highlights your collarbones and shoulders, creating an elegant and timeless look. To make the most of this outfit, we recommend incorporating these style elements:
- Bold accessories: Pair the dress with statement jewelry like large earrings, a chunky necklace, or a cuff bracelet to draw attention to your neckline and complement the vibrant red color.
- Classic footwear: Keep the focus on the dress by choosing minimalist, neutral-toned heels or sandals. Avoid anything too flashy or colorful.
- Natural hair and makeup: With such a striking outfit, it’s best to keep your hair and makeup simple and classic. Soft, natural curls or a loose updo would look great, while a little eyeliner, mascara, and neutral lip color will let the dress be the star of the show.
- Confident posture: Finally, remember to strike a pose with confidence and poise. Stand tall, keep your shoulders back, and let your inner beauty shine through.
By incorporating these ideas, you’ll create an unforgettable senior picture featuring the gorgeous off-the-shoulder red mini-dress.
Academic Regalia
When it comes to senior picture outfits, one comes to mind: the academic regalia. The cap and gown are a classic and timeless choice for a senior picture. They represent the culmination of an educational journey and the commencement of a new chapter in life.
Cap and Gown: The distinguishing components of academic regalia include:
- The cap, also known as a mortarboard, is derived from a square academic cap that symbolizes scholarly accomplishments.
- The gown is a long, flowing garment worn over regular clothing. Its length and design vary based on the level of education (bachelor’s, master’s, or doctoral) and the institution’s regulations.
Colors: Colors have specific meanings in academic regalia, and each discipline has its associated colors. Here are a few examples for various disciplines:
- Arts and Humanities: white
- Science: golden yellow
- Engineering: orange
- Education: light blue
To ensure your senior picture outfits bring the desired message, we recommend coordinating with your school to obtain the appropriate cap and gown reflecting the colors, design, and other details distinctive of your educational institution.
By including the academic regalia in senior picture outfits, you’ll be capturing a significant milestone while showcasing your achievements amidst a tradition rooted in academia.
Baby Pink Blouse, Winter Jacket And White Midi Dress
For a fashionable yet casual look in senior picture outfits, we suggest combining a baby pink blouse with a winter jacket and a white midi dress. This combination allows for a versatile style that can be dressed up or down depending on the desired vibe.
- Baby Pink Blouse: Choose a soft, feminine baby pink blouse that complements the skin tone. Ideally, opt for a lightweight fabric, such as cotton or silk, which adds a touch of elegance to the outfit.
- Winter Jacket: Depending on the season and location, accessorize with a stylish winter jacket, such as a faux fur coat or a sophisticated, tailored piece. This adds texture and depth to the overall look while keeping you warm and comfortable.
- White Midi Dress: Opt for a white midi dress as the base of this outfit. Select a flowy and flattering design, ideally with an A-line or pleated midi skirt, which adds movement and a touch of whimsy to the overall aesthetic.
To complete this lovely senior picture outfit, we recommend adding some simple, yet chic accessories like a pair of dainty earrings, a delicate necklace, or a fashionable belt to cinch the waist. With these elements in place, you’ll be ready to showcase your individual style and make a memorable impression in your senior photos.
Boho Long-Laced Kimono And Ankle Boots
When it comes to senior picture outfits, we recommend incorporating a boho long-laced kimono and ankle boots for a stylish and versatile look. This combination adds a touch of bohemian flair while remaining comfortable and easy to wear throughout the photo session.
Incorporate layers into the outfit to add depth and dimension to the look:
- Pair the kimono with a form-fitting top or a crop top to highlight the waistline. This will create an interesting contrast between the flowy kimono and a more fitted top.
- Wear a pair of jeans or leggings to create a balance between the loose-fitting kimono and the tighter lower half, ensuring a cohesive look.
- Choose ankle boots with a small heel to add some height and create a more polished appearance. Opt for a neutral color that complements the tones of the kimono and the rest of the outfit.
By combining these elements, we can create a beautiful and well-coordinated look for senior picture outfits that showcase personal style and a hint of bohemian flair.
Yellow Tiered Cami Dress
As a perfect addition to our senior picture outfits, we recommend the Yellow Tiered Cami Dress. Here are some key features:
- Vibrant yellow color to make you stand out
- Lightweight fabric ideal for summer weather
- Adjustable spaghetti straps for a comfortable fit
- Tiered design that adds visual interest and movement
For a complete look, consider styling our Yellow Tiered Cami Dress with these accessories:
- Minimalist gold jewelry for a touch of elegance
- Neutral-colored sandals or heels to keep the focus on the dress
- A sun hat or simple hair accessory to complement the summer vibes
We believe the Yellow Tiered Cami Dress is an excellent option for creating memorable senior photos that showcase your style.
Long Puffy Sleeved Crop Top And White Trousers
For a stylish and sophisticated senior picture outfit, we recommend a long puffy puffy-sleeved crop top paired with white trousers. This combination exudes confidence and elegance, perfect for capturing a memorable moment in one’s academic journey. Here are some tips on how to wear and style this outfit:
- Crop Top: Choose a crop top with voluminous puffy sleeves for a trendy and fashion-forward look. Opt for solid colors or minimal prints to keep the focus on the interesting sleeve shape and the overall outfit.
- To incorporate a tank top variation, consider a spaghetti strap or halter neck tank top layered underneath the puffy-sleeved crop top.
- White Trousers: To contrast with the statement crop top, select white trousers in a high-waisted and wide-leg cut. This silhouette not only accentuates the waist but also elongates the legs, making it a flattering option for all body types.
- Accessories: Keep accessories minimal, opting for delicate gold or silver jewelry like layered necklaces or hoop earrings.
- Shoes: Depending on the level of formality for the photoshoot, we suggest either pairing the outfit with classic white sneakers for a casual vibe or choosing strappy heels for a more polished look.
Remember, the key is to feel comfortable and confident in your senior picture outfit. We hope these guidelines will help you create a stunning ensemble that showcases your unique style and personality.
Flared Baby Blue Mini Dress And Red Heels
For a truly eye-catching and vibrant senior picture outfit, we highly recommend pairing a flared baby blue mini dress with bold red heels. The contrast of these colors creates a memorable and stylish look that will stand out in your photos.
- Flared Baby Blue Mini Dress: A flared mini dress adds a touch of youthful elegance to your outfit. The baby blue color is not only a refreshing choice but also complements a variety of skin tones.
- Bold Red Heels: High-heeled shoes elongate your legs and add an extra touch of sophistication to your outfit. The striking red tone provides a fantastic contrast to the soft baby blue dress, creating a bold and unforgettable look.
To further enhance this outfit, consider adding some tasteful accessories, such as a statement necklace or a delicately layered bracelet. Additionally, our suggestion would be to keep the makeup subtle and let the vibrant colors of the outfit shine on their own. This combination of a flared baby blue mini dress and red heels will undoubtedly make your senior pictures an unforgettable experience.
Classy White Sundress And a Hat
When it comes to senior picture outfits, we can’t go wrong with a classy white sundress and a hat. This timeless combination showcases elegance and grace, adding a touch of sophistication to your photos. Let’s consider some reasons why this outfit shines.
- Perfect for outdoor photoshoots: A white sundress reflects sunlight, preventing overheating. Paired with a hat, you’ll have comfortable protection from the sun.
- Versatility: Dress it up or down. Add a denim jacket for a casual look or a statement necklace for a more elegant touch.
- Flattering silhouette: Sundresses typically have a flowy design, accentuating the waist. They offer a flattering silhouette for various body types.
In conclusion, we believe that a classy white sundress and a hat make for the perfect senior picture outfit. Give it a try, and confidently showcase your style in your unforgettable photos!
Pleated Flared Yellow Dress With Black Edges
When it comes to senior picture outfits, we can’t help but mention the pleated flared yellow dress with black edges. This eye-catching outfit not only showcases a vibrant color, but also adds an element of sophistication with the contrasting black edges.
Here are some reasons why this dress makes a great choice for senior pictures:
- Bold color: A yellow dress instantly stands out and helps you make a statement.
- Flattering silhouette: The pleated flared design gives a sense of movement and can help create a more dynamic photo.
- Versatile styling: You can easily dress this outfit up or down with the right accessories and footwear.
To make the most of this outfit, consider the following tips:
- Pair with neutral shoes: Black or nude shoes will keep the attention on the dress and avoid any distractions.
- Choose the right location: A natural setting or a neutral-colored background will let the yellow dress take the spotlight.
- Complement with minimal accessories: Simple jewelry, such as a delicate necklace or stud earrings, will preserve the outfit’s elegance.
Floral Maxi Dress With High Slit
As a popular choice for senior picture outfits, a floral maxi dress with a high slit brings both elegance and style. It showcases the wearer’s personality and individual taste. We recommend opting for a dress with vibrant floral patterns that complement the skin tone.
In consideration of the high slit, always ensure it is tasteful and appropriate. It is essential to select a suitable location for the photoshoot that complements the floral maxi dress and enhances the overall look. Some options are:
- A garden or park with blooming flowers
- An urban setting with colorful murals
- A beach or lakeside location
Pair the floral maxi dress with suitable accessories, such as:
- Bold Statement Jewelry: A large necklace or earrings can add a touch of personality and draw attention to the face.
- Strappy Sandals: Choosing footwear with thinner straps can create a delicate and elongated look for the legs.
- Belts and Sashes: Adding a belt or sash can accentuate the waist and add definition to the dress.
Remember to consider the time of day and lighting conditions for the photo shoot, as the floral maxi dress will look its best in natural light. Finally, test out various poses and angles to capture the dress’s unique features and the wearer’s confidence.
Pinup Girl Look
In our quest to find the perfect senior picture outfit, we can’t ignore the timeless charm of the Pinup Girl Look. This classic style from the 1940s and 1950s is still a popular choice for photoshoots. Here’s a brief overview of how to achieve this look:
- Outfits: Vintage-inspired dresses with cinched waists and full skirts or high-waisted shorts and cropped tops are iconic pinup styles. Don’t forget accessories like bandanas or hair flowers.
- Hair: Victory rolls, barrel curls, or rolled bangs are some of the hairstyles that define the pinup era. You can achieve these looks with the help of hair-setting techniques and pins.
- Makeup: Pinup girl makeup is characterized by bold red lips, winged eyeliner, and flawless skin. A touch of blush and neatly groomed eyebrows complete the look.
Remember to have fun and let your personality shine through when choosing your pinup girl-inspired senior picture outfit. With the right outfit, hair, and makeup, you will undoubtedly achieve a memorable and stylish look that will stand the test of time.
Plus Size Purple Pleated Midi Dress
We believe that a plus-size purple pleated midi dress would be a fantastic choice for senior picture outfits. The vibrant purple color will make you stand out, and the pleated design adds an elegant touch, perfect for such a memorable occasion. The midi length is both fashionable and comfortable, ensuring you feel confident during your photo shoot.
To enhance your outfit, consider accessorizing with some stylish jewelry and accessories to bring your look together. Here are some suggestions:
- Necklaces: A simple gold or silver pendant necklace can draw attention to your face and neck, making it perfect for senior pictures.
- Earrings: Statement earrings, like chandeliers or large hoop earrings, can add an extra touch of sophistication to your outfit.
- Bracelets: A set of stylish bracelets can complement the dress and showcase your personal style. Opt for bangles or beaded bracelets that match the color scheme of your outfit.
- Belts: A chic belt can help accentuate your waist and add some flair to the pleated midi dress. Choose a metallic belt or a studded one to make a statement.
- Shoes: For footwear, we recommend pairing your dress with heels or wedges to elongate your legs. Color-coordinate your shoes with your dress or opt for a neutral shade.
By incorporating these accessories and jewelry pieces into your senior picture outfit, you can feel confident and look stunning in your plus-size purple pleated midi dress.
Red Winter Jacket, Jeans And Ankle Boots.
When it comes to senior picture outfits, we recommend a stylish and comfortable ensemble of a red winter jacket, jeans, and ankle boots. This outfit is perfect for outdoor photoshoots during cooler months, providing warmth while still looking fashionable.
The red winter jacket adds a pop of color and makes a bold statement, ensuring that you stand out in your photos. Opting for jackets made from materials such as wool or down can provide the necessary insulation for a chilly day.
Pairing this with a pair of jeans adds a touch of casual comfort to the outfit. Jeans come in various styles, such as slim-fit, straight-leg, and relaxed-fit, enabling you to choose the one that suits your body type and personal style best. To keep the attention on the jacket, select jeans in a darker shade, like indigo or black.
Completing this outfit with a pair of versatile ankle boots not only offers additional warmth but also elevates the overall look. Choose either leather or suede boots in a color that complements your winter jacket. You can select from various heel heights, from flats to block heels, to match your comfort level and desired style.
Accessorize this outfit with a simple scarf or statement jewelry to make it more personalized. Remember that confidence is key in capturing memorable senior pictures, and this outfit combination will have you feeling cozy and stylish as you pose for the camera.
Flowy Red Cutout Dress On The Beach
As we explore senior picture outfit ideas, a flowy red cutout dress on the beach is a stunning choice. The vibrant color exudes confidence and the beach setting allows for a breathtaking backdrop.
We love the way the red dress contrasts with the natural environment, ensuring you’ll stand out in your senior pictures. The cutout details add a touch of flair, making this outfit trendy and stylish.
Here are some reasons why this outfit is perfect for a beach photoshoot:
- Bold color: Red captures attention and reflects your outgoing personality
- Flowy fabric: It adds movement to your poses, making your pictures dynamic
- Cutout details: They provide a modern touch to a classic silhouette
- Beach setting: The combination of sand, water, and sky creates a serene atmosphere
Remember to complement your outfit with accessories such as dainty jewelry, natural makeup, and loose wavy hair, for a chic and effortless look. With this eye-catching ensemble, you’ll proudly look back on your senior pictures for years to come.
Cheerleader School Colors
When picking senior picture outfits, we can’t forget to include our cheerleader school colors to showcase our spirit and pride. Many schools select solid colors, making it easy to coordinate with the rest of our wardrobe.
Here’s a list of the key elements to consider when incorporating school colors for your senior picture outfits:
- Choose a main color: Use your school’s primary color as the base for your outfit. For example, if your school colors are red and white, choose a red dress or shirt as the main piece.
- Incorporate a secondary color: Add your school’s secondary color as an accent piece, using accessories like scarves, belts, or earrings. Continuing with the red and white example, you could wear a white belt or white earrings to complement the red outfit.
- Balance with neutral colors: To avoid an overly saturated look, pair your school colors with neutral tones like black, gray, or beige. This can help balance your outfit and make the colors pop just enough.
- Try color-blocking: Color-blocking can be a fun and bold way to showcase your school colors, especially if they are solid colors. For instance, you could wear a red skirt with a white blouse, or vice versa.
Remember, the key is to proudly display our cheerleader school colors while still looking fashion-forward and creating memorable senior picture outfits.
Red Long Sleeved Bodycon Dress
When it comes to senior picture outfits, a red long-sleeved bodycon dress is a fantastic option that helps showcase both style and confidence. Here are some reasons why this dress is perfect for senior pictures:
- Bold color: Red is a strong and eye-catching color, which can make your photos stand out and leave a lasting impression.
- Versatility: This dress can be dressed up with heels and statement jewelry, or dressed down with a denim jacket and flats, giving us various options for the photo session.
- Timelessness: A classic bodycon silhouette paired with long sleeves ensures that our outfit will look fashionable even years down the road.
- Flattering fit: This type of dress hugs the contours of our body, accentuating our natural curves and making us feel confident in our appearance.
Of course, we need to make sure the dress is comfortable and allows for freedom of movement during the photo session. Here are some tips to achieve the perfect fit:
Tip | Description |
---|---|
Choose the right size | Ensure the dress fits comfortably without being too tight or too loose. |
Select a stretchable material | Opt for fabrics like spandex or a blend that allows some stretch without losing its shape. |
Wear appropriate foundation garments | Smooth lines and curves can be achieved with seamless underwear and a well-fitting bra. |
Test your movement | Check if we can move freely like sitting, standing, or walking, without any discomfort. |
By following these tips and donning a red long-sleeved bodycon dress, we’re sure to make a stylish and memorable statement in our senior pictures.
Cowboy Boots And Babydoll Dress
In our search for senior picture outfits, we’ve found a perfect combination that brings both style and a touch of Americana to your photos: cowboy boots and babydoll dresses. This pairing can create a fun, confident look that captures your personality while evoking a sense of all-American style. Let’s take a closer look at this outfit choice:
- Cowboy Boots: These versatile boots come in a variety of colors, materials, and styles. They can be dressed up or down and bring an element of country twang to any outfit. Choose a pair in a neutral color like brown or black to keep the focus on your dress or opt for an embellished or brightly colored pair to make your footwear stand out.
- Babydoll Dress: The babydoll dress is a flattering and comfortable choice for senior photos. It features a fitted bodice and flowing skirt, which can highlight your figure while also providing a touch of femininity. Look for dresses in solid colors, floral patterns, or with unique details like lace or embroidery to make your outfit even more eye-catching.
- Accessorize Appropriately: Add the finishing touches to your outfit with tasteful accessories. A wide-brimmed hat, layered necklaces, or a statement belt buckle can enhance the cowgirl vibe. Remember to keep it simple, as these additions should complement your outfit and not overshadow it.
Together, these pieces create a stylish and unique outfit for your senior pictures. Be confident and let your true self shine through as you wear cowboy boots and a babydoll dress for a winning combination that is sure to make a statement in your photos.
One-shoulder White Crop Top And Embroidered Mini Skirt
When it comes to senior picture outfits, one timeless and chic option is pairing a one-shoulder white crop top with an embroidered mini skirt. This outfit effortlessly combines sophistication and modernity, making it perfect for showcasing your personality and style.
To achieve the perfect look, consider the following elements:
- One-shoulder White Crop Top: The key component of this ensemble, a one-shoulder white crop top, adds elegance and style to your outfit. Choose a top with a flattering cut to accentuate your neckline and shoulder.
- Embroidered Mini Skirt: Complement the crop top with a trendy embroidered mini skirt. Look for intricate patterns and embroidery to create visual interest and add a touch of texture to the outfit.
- Accessories: Enhance the overall look with minimal yet impactful accessories like delicate necklaces, bracelets, or a pair of statement earrings.
- Shoes: Complete your outfit with a pair of stylish shoes that match the tone of your ensemble. Neutral or metallic heels, flats, or sandals can be excellent choices.
- Hairstyle and Makeup: Opt for a simple and natural hairstyle and makeup to keep the focus on the outfit and let your personality shine through.
We believe this outfit combination will make for a stunning senior picture, capturing your sense of style and leaving a lasting impression.
White Beanie And Long Warm Puffer Jacket
As we enter the winter season, a great outfit choice for senior pictures is a white beanie paired with a long warm puffer jacket. This combination offers both comfort and style during the colder months. A white beanie adds a touch of elegance and helps keep us warm, while also highlighting our facial features.
The long warm puffer jacket is not only a fashionable choice, but it also provides the necessary warmth and insulation for those chilly winter days. To complete this senior picture outfit, we can wear fitted jeans, leggings, or even a skirt with tights. For footwear, opt for comfortable yet stylish boots that complement the outfit. Here are some ideas to consider when choosing a puffer jacket:
- Color: Neutral tones such as black, navy, or gray work well with most outfits. Alternatively, a pop of color like red or mustard yellow adds vibrancy to the ensemble.
- Length: Choose a jacket length that is most flattering to your body type and style. Options range from mid-thigh to just above the knee.
- Type: Experiment with various puffer jacket styles – classic quilted, belted, or even one with a fur-lined hood.
Remember to keep our outfits true to our personal style, as our senior pictures should be a reflection of who we are. A white beanie and long warm puffer jacket combination will not only keep us comfortable during winter but also result in stunning and memorable senior picture photos.