Marketing, creator & AI terms, defined.

ROAS (return on ad spend) is the revenue you earn for every $1 of advertising spend — total ad-driven revenue divided by ad spend.

CPM (cost per mille) is the price to show your ad 1,000 times — ad spend divided by impressions, multiplied by 1,000.

CPC (cost per click) is the average amount you pay each time someone clicks your ad — ad spend divided by clicks.

CAC (customer acquisition cost) is the average cost to win one new customer — total sales and marketing spend divided by the number of new customers.

LTV (customer lifetime value) is the total profit you expect from a customer over the whole relationship, not just their first purchase.

CTR (click-through rate) is the share of people who click after seeing your ad or link — clicks divided by impressions, as a percentage.

RPM (revenue per mille) is how much a creator earns per 1,000 views after the platform's cut — total earnings divided by views, times 1,000.

Engagement rate is the share of an audience that interacts with a post — likes and comments divided by followers (or reach), as a percentage.

UGC (user-generated content) is authentic, creator-style content made to look like a real person's post rather than a polished brand ad.

An ad hook is the first few seconds of a video ad — the opening line or visual that stops the scroll and earns the next three seconds of attention.

Text-to-video is AI that turns a written prompt into a short video clip, generating the motion, scene, and subjects from the description alone.

Image-to-video is AI that animates a still image into a video clip, adding motion while keeping the original picture as the starting frame.

Text-to-image is AI that generates a picture from a written prompt, creating the composition, subjects, and style from the description.

AI lip sync automatically matches a person's or avatar's mouth movements to an audio track, so the visuals look like they're speaking the words.

A diffusion model is the AI architecture behind most image and video generators: it starts from random noise and gradually denoises it into a coherent result guided by your prompt.

A LoRA is a small add-on that fine-tunes an AI image or video model to reproduce a specific style, character, product, or face without retraining the whole model.

A prompt is the text instruction you give an AI model describing what to generate — the more specific it is, the more predictable the result.

A negative prompt tells an image or video model what to avoid — a list of elements, styles, or artifacts you don't want in the result.

A seed is the number that sets an AI generator's starting randomness — reusing the same seed and prompt reproduces the same result.

AI upscaling increases an image or video's resolution while inventing plausible detail, producing a larger, sharper result than simple stretching.

Inpainting is AI editing that regenerates a masked region of an image — to remove an object, fix a flaw, or replace part of the picture — while blending with the rest.

Aspect ratio is the proportional relationship between an image or video's width and height, written as width:height — like 16:9, 9:16, or 1:1.