sub·ti·tle 
(sŭbtīt′l)
(sŭbtīt′l)n.
1. A secondary, usually explanatory title, as of a literary work.
2. A printed translation of foreign-language dialogue shown at the bottom of the screen, as in a film or a television broadcast.
tr.v. sub·ti·tled, sub·ti·tling, sub·ti·tles
1. To give a subtitle to.
2. To provide with subtitles: a film that was subtitled for English-speaking audiences.