captioner
cap·tion·er [ ˈkap-shə-nər]
[ˈkap-shə-nər]
plural captioners
: a person who writes captions
especially : a person who provides the captions used in closed captioning The captioner strokes the steno keys while listening to the live broadcast, transcribing the broadcast accurately while inserting correct punctuation and other symbols. — Ferguson's Careers In Focus, 2009 First Known Use of captioner
1936, in the meaning defined above
Dictionary Entries near captioner