"Text overlay" refers to adding text on top of an image or video. It helps convey additional information, such as captions, titles, or descriptions, enhancing and clarifying the content for the viewer. Full definition
But as we enter the New Year, make sure you're familiar with Facebook's updated policy concerning text overlays on images and photos. (entrepreneur.com)
Pins with text overlay are way more likely to be re-pinned than those without. (blogbossbabe.com)
Beautiful photography with clear and simple text overlay. (wholefully.com)