What is another word for sub-titling?
Pronunciation: [sˈʌbtˈa͡ɪtlɪŋ] (IPA) 
Sub-titling, also known as captioning, is the practice of providing written text on screen to accompany audio-visual content. This serves as a means of aiding viewers who are hearing impaired or have difficulty comprehending the spoken language. There are several other synonyms for sub-titling, including closed captioning, subtitling, and supertitling. Closed captioning refers to the inclusion of text within the same screen space as the content being watched. Subtitling involves the creation of a separate subtitle file that can be turned on and off by the viewer. Supertitling is used mainly in live events such as theatre performances, where translated subtitles are projected above the stage.
