caption

(typography) The descriptive heading or title, of a document or part thereof.

A title or brief explanation attached to an illustration, cartoon, user interface element, etc.

(cinematography, television) A piece of text appearing on screen as a subtitle or other part of a film or broadcast, describing dialogue (and sometimes other sound) for viewers who cannot hear.

(law) The section on an official paper (for example, as part of a seizure or capture) that describes when, where, and what was taken, found or executed, and who authorized the act.

(obsolete, law) A seizure or capture, especially of tangible property (chattel).