A plain-English glossary of video advertising terms, from hook and B-roll to ROAS, LUFS and safe area, for marketers and small business owners.
This glossary explains the video advertising words you meet when you plan, make and run short ads. Each entry is a short, plain definition written for small businesses and creators, with no jargon assumed. Use it alongside how it works, the features overview and the languages guide.
The hook is the first one to three seconds of your ad, the part that decides whether someone keeps watching or scrolls past. It usually leads with the single most interesting thing about your product: a problem it solves, a surprising visual, or a clear offer. A weak hook wastes everything after it, because most viewers never reach the middle. When MakePerfectAds plans an ad it writes the hook first and builds the rest of the shots around it. See how it works for the full plan.
A call to action, or CTA, is the instruction you give viewers at the end of an ad: "Shop now", "Download the app", "Book a table". It tells people exactly what to do next and removes hesitation. A good CTA is short, specific and matched to where the ad sends people. MakePerfectAds uses the call to action you provide word for word, so the wording you choose is exactly what appears. Learn more on the features page.
A UGC ad (user-generated content ad) is an ad made to look like an everyday post from a real person rather than a polished studio production. It typically uses casual framing, natural lighting and a spoken, personal tone. Brands use the style because it feels authentic and blends into social feeds. MakePerfectAds produces short product ads and does not use on-camera presenters or avatars; your ad shows your real product.
B-roll is supporting footage that plays under narration or between main shots: close-ups of a product, hands using it, textures, or atmosphere. It keeps an ad visually interesting and gives the eye something to follow while the voiceover carries the message. In a short social ad, B-roll is often the whole visual, cut tightly to the pace of the hook and captions.
Aspect ratio is the shape of your video frame, written as width to height. Vertical 9:16 fills a phone screen and suits Stories, Reels and Shorts; landscape 16:9 suits in-feed and YouTube placements. Choosing the right ratio means your ad is not cropped or letterboxed where it runs. MakePerfectAds makes ads in 9:16 or 16:9. See the features page for formats.
The safe area is the central part of the frame that stays clear of platform buttons, usernames, captions and other interface elements laid over the video. Keeping key text and your product inside the safe area means nothing important is hidden by a "Like" button or a profile name. It matters most in vertical formats, where interface elements crowd the edges.
A voiceover is the spoken narration in an ad, recorded or generated separately from any on-screen footage. It carries your message, sets the tone and guides the viewer through hook, benefit and call to action. MakePerfectAds can generate a voiceover in the language you choose, including mixed styles. Always listen to the result before publishing, especially in a language you do not speak. See the languages guide.
Captions and subtitles both put words on screen, but they differ in purpose. Subtitles translate or transcribe dialogue for viewers who speak another language. Captions transcribe all meaningful audio, including narration, for viewers who watch with sound off, which is most people in a social feed. For short ads, on-screen captions of the voiceover are the practical default.
Burned-in captions are text rendered directly into the video pixels, so they always appear and cannot be turned off. Unlike platform caption files, they survive re-uploads and show the same on every app. The trade-off is that they must be correct before you publish, because they cannot be edited later. MakePerfectAds produces burned-in captions in many writing systems; check them before publishing.
Code-switching is moving between two languages within the same sentence or conversation, the way many people naturally speak. In ads, it can make copy feel local and real for bilingual audiences. Done badly it feels forced. MakePerfectAds supports mixed-language styles that blend languages naturally and keep captions readable. See the Hinglish page for one example.
Hinglish is the everyday blend of Hindi and English spoken across much of India, mixing words and grammar from both within one sentence. It is common in conversation and increasingly in advertising aimed at Indian audiences. MakePerfectAds can produce ads in Hinglish and other mixed styles, with natural mixing and Roman-script captions where that is usual. See the Hinglish page.
CTR, or click-through rate, is the share of people who click your ad out of everyone who saw it, written as a percentage. It measures how well an ad earns the next step, not whether it sells. A strong hook and a clear call to action tend to lift CTR. It is one signal among several; read it alongside cost and conversion measures rather than on its own.
CPM means cost per mille, the price you pay for one thousand ad impressions. It is a buying metric set by auction, audience and competition, not a measure of ad quality. A lower CPM means cheaper reach, but cheap reach is only useful if the audience is right. Compare CPM across placements to understand where your budget stretches furthest.
CPA, or cost per acquisition, is the average amount you spend to win one desired action, such as a sale or a sign-up. It ties ad spend directly to results, which makes it one of the most useful numbers for a small budget. Lowering CPA usually comes from a better offer, a tighter audience or a stronger creative, not just from spending less.
ROAS, or return on ad spend, is the revenue earned for every unit of currency spent on ads, usually written as a ratio such as 3:1. It tells you whether a campaign pays for itself. A healthy ROAS depends on your margins, so the same number can be good for one business and poor for another. Track it over time rather than reacting to a single day.
An A/B test compares two versions of an ad, changing one thing at a time, to see which performs better with real viewers. You might test two hooks, two calls to action or two lengths. Because only one variable changes, you can attribute any difference to that change. Making several variants quickly is where fast ad creation helps; see the features page.
Creative fatigue is the drop in performance that happens when the same audience sees the same ad too many times and stops responding. Click-through falls and cost rises even though nothing else changed. The remedy is fresh creative: new hooks, visuals or angles on a regular schedule. Being able to produce new variants quickly keeps a campaign from going stale.
Automated campaign targeting is when an advertising platform decides which people to show your ad to, using its own signals rather than rules you set by hand. You supply the creative, budget and goal; the system finds responsive audiences and adjusts over time. It can outperform manual settings at scale, but it still depends on strong creative and a clear objective to work well.
Reels are short vertical videos on Instagram and Facebook, shown in a dedicated feed and in between other content. They favour fast hooks, captions and sound-off viewing. For advertisers, Reels are a common home for 9:16 video ads. Making a vertical cut with burned-in captions and a clear first second suits the placement. See the use cases for ideas.
Shorts are YouTube's short vertical videos, played in a swipe-up feed similar to other short-video formats. They reward a strong opening and work with sound on or off. For advertisers, a 9:16 ad with captions and a clear call to action fits the format. The same vertical creative often works across Shorts, Reels and other short-video placements.
Frequency is the average number of times each person in your audience has seen your ad over a period. Low frequency may mean too little reach to be remembered; high frequency risks annoyance and creative fatigue. Watching frequency helps you decide when to refresh creative or widen the audience. It is a planning signal, read alongside cost and response.
Retargeting shows ads to people who already interacted with your business, such as visiting your product page or adding to a cart without buying. Because these people know you, retargeting often converts more cheaply than reaching strangers. The creative usually leans on a reminder and a clear offer. Pair it with a strong landing page to turn interest into action.
A lookalike audience is a group of new people a platform finds because they resemble your existing customers or engaged visitors. It is a way to reach fresh prospects who are more likely to care than a random audience. The quality depends on the source list you base it on. Lookalikes pair well with a strong hook, since the viewers do not yet know you.
Loudness is how loud audio feels to a listener, measured in LUFS (Loudness Units Full Scale). Social platforms normalise audio toward a target so no single video blasts the feed; a common reference is around -14 LUFS. Mixing to a sensible loudness keeps your ad from being turned down or sounding weak. MakePerfectAds normalises finished videos to -14 LUFS.
Hook rate is the share of viewers who keep watching past the first few seconds, often measured as those who reach the three-second mark. It isolates how well your opening holds attention, separate from the rest of the ad. A low hook rate points at the first shot, not the offer. Testing different hooks is the fastest way to improve it.
Thumb-stop describes the moment an ad makes someone pause their scrolling thumb long enough to watch. It is the informal goal of a strong hook: stop the scroll, then earn the next second. A thumb-stopping opening usually combines an arresting visual with an immediate reason to care. Everything after it only matters if the first second works.
A landing page is the web page an ad sends people to after they click. The best landing pages match the ad's promise, load fast and make the next step obvious. A mismatch between ad and page wastes clicks you paid for. A focused product page often works better than a busy homepage for a single-product ad.
An offer is the specific deal or reason to act that your ad puts in front of viewers: a discount, a bundle, free shipping, a free trial, or simply the core value of the product. A clear offer gives the call to action something concrete to point at. Weak ads often fail because they describe a product without ever stating why to act now.
Social proof is evidence that other people value your product: reviews, ratings, follower counts, or signs of popularity. It reassures a cautious buyer that they are not the first. Use only genuine proof you can stand behind; invented numbers or fake reviews breach platform rules and erode trust. If you have real proof, a short, honest mention can strengthen an ad.
A brand kit is the reusable set of visual elements that make your brand recognisable: logo, colours, fonts and tone. Keeping them consistent across ads builds familiarity over time. A reusable brand kit is coming at launch in MakePerfectAds; until then, the tool reads brand colours from your page when it can detect them. See the features page.
A product page is a web page focused on a single product, with its name, description, price, images and a buy button. For ad creation, a product page is usually a better starting point than a homepage, because it gives a clear subject and strong images. Import tips on the help page explain when to use a product page versus a homepage.
Frame rate is the number of still images shown per second to create the illusion of motion, written as fps. Common web video runs at 24, 25 or 30 fps. Higher rates look smoother for fast motion but create larger files. For short social ads the difference is usually minor; consistency matters more than chasing a high number.
1080p is a video resolution of 1920 by 1080 pixels, often called Full HD. It is sharp enough for phones and most feeds without creating huge files. MakePerfectAds can export finished ads at 1080p or 720p as an MP4 file. Higher resolution helps most when your ad shows fine product detail. See the features page for export options.
MP4 is the common video file format used across social platforms and devices. It packages video and audio together in a widely supported container, which is why most ad uploads expect it. MakePerfectAds exports finished ads as MP4 files. When you upload an ad, the platform may re-compress it, so start from a clean, correctly sized file.
An impression counts a single time your ad is shown on a screen, whether or not anyone engages with it. Impressions measure delivery, not attention or results. They are the basis for reach and frequency, and for cost metrics like CPM. On their own they say little; pair them with click-through and conversion data to judge an ad.
A conversion is a desired action a viewer takes because of your ad: a purchase, a sign-up, a download or a booking. Conversions are the results that justify ad spend, which is why metrics like CPA and ROAS are built on them. Tracking conversions accurately depends on your landing page and measurement setup, not on the ad creative alone.
Vertical video is footage shaped taller than it is wide, in a 9:16 aspect ratio, made to fill a phone screen held upright. It is the native shape for Reels, Shorts and Stories. Shooting or generating directly in vertical avoids awkward cropping. MakePerfectAds produces vertical 9:16 ads as well as landscape 16:9. See the features page.
A storyboard is a shot-by-shot plan of a video, showing what appears in each scene and in what order, before anything is produced. It turns an idea into a concrete sequence of hook, supporting shots and call to action. MakePerfectAds plans each ad as a brief, hook, shot list, caption and voiceover lines that you approve or regenerate; see how it works.
For most small businesses, cost per acquisition (CPA) and return on ad spend (ROAS) matter most, because they tie spend directly to results. Click-through rate and hook rate help you diagnose a weak ad, but they do not prove it sells. Start from the business result you want, then work back to the creative signals that influence it.
Subtitles translate or transcribe dialogue for viewers who speak another language, while captions transcribe all meaningful audio, including narration, for viewers watching with the sound off. In short social ads, on-screen captions of the voiceover are the practical default, since most people scroll with sound muted.
Use vertical 9:16 for Reels, Shorts and Stories, where the video fills a phone screen, and landscape 16:9 for in-feed and YouTube placements. Matching the aspect ratio to the placement avoids cropping and letterboxing. MakePerfectAds can produce either format, so you can make a cut that fits where the ad runs.