The letters CC on a rounded card, marking captioned content.
Also known as: CC symbol, Captions icon, Subtitles symbol, Closed caption logo
Two Cs on a card shape mark content that carries captions which can be switched on. The distinction it encodes — closed captions the viewer turns on, versus open captions always burned into the picture — is the whole point of the word 'closed'.
Marks video content for which captions are available and can be switched on by the viewer.
Contexts: Public information
Means the captions are optional rather than permanent: 'closed' captions are carried alongside the picture and turned on by the viewer, while 'open' captions are part of the image and cannot be switched off.
Contexts: Public information
Is often used interchangeably with the subtitle symbol, although the two serve different needs: captions convey speaker identity and relevant non-speech sound, subtitles usually carry dialogue alone.
The distinction is maintained in broadcast practice and in accessibility guidance, but the two terms are used loosely by the public and by some streaming interfaces.
Contexts: Public information
Two capital letter Cs side by side, the second often partly overlapping or set inside the first, on a rounded rectangular card.