Descriptive text that is associated with a piece of content, such as an image.
— Computer ScienceDescriptive text that represents the audio content of a television or video program as text on the screen. Captions are usually visible only if decoded or activated.
— Computer Sciencethe descriptive, printed line(s) of text that occasionally appears on the screen, usually at the bottom of the frame, to describe the time/place, or to translate a foreign word/phrase; different from closed-captioning (closed captions are all white uppercase (capital) letters encased in a black box that require a decoder or television with a decoder chip to be viewed) for deaf or hard-of-hearing viewers; see also subtitles
— Film Terms