<p><strong>Noun</strong></p><ul><li>a title or explanation for a picture or illustration, as in a magazine, newspaper, or book.</li><li>a heading or title, as of a chapter, article, or page.</li><li>Movies, Television, Digital Technology: a transcription or translation of dialogue and a written description of other audio elements, as sound effects, music, or atmospheric sounds, displayed as a graphic overlay on the lower part of the screen in a television program, film, video, or video game.</li><li>a title or annotation displayed as a graphic overlay on the screen in a television program, film, video, or video game, as to set the scene, name a location, or specify a time or date.</li><li>Law: the heading of a legal document stating the time, place, etc., of execution or performance.</li></ul><p><strong>Verb (used with object)</strong></p><ul><li>to supply a caption or captions for: to caption a photograph.</li></ul>