—n. 1. a secondary or subordinate title of a literary work, usually of explanatory character.
2. a repetition of the leading words in the full title of a book at the head of the first page of text.
3. Motion Pictures,Television. a. the text of dialogue, speeches, operas, etc., translated into another language and projected on the lower part of the screen.
b. (in silent motion pictures) a title or caption.