caption
Definitions
A title or brief explanation appended to an article, illustration, cartoon, or poster.
A piece of text appearing on a screen as part of a film or broadcast, especially a translation of dialogue or a display of information for the hearing impaired.
A short phrase or sentence used to describe or identify a photograph or image.
Examples
Please write a witty caption for this photograph before you post it online.
The news report included a caption that identified all the people in the background.