captioner

noun

cap·​tion·​er 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

Word History

First Known Use

1936, in the meaning defined above

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