Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Paralinguistic Cues(also: Paralanguage, Paralinguistic Features, Non-verbal Vocal Cues)
- Aspects of spoken communication that carry meaning beyond the literal words themselves: tone of voice, pitch contour, loudness, rhythm, tempo, stress, pauses, and voice quality. Paralinguistic cues convey emotion, emphasis, sarcasm, uncertainty, speaker identity, and social…
- Participatory Captioning
- A framework proposed by Nguyen et al. (2026) that characterises social media video captioning as a collaborative, community-sustained infrastructure co-produced by viewers, creators, and platforms — rather than a top-down accessibility feature delivered unilaterally.…
- Play-by-Play(also: Play-by-play announcing, Play-by-play commentary)
- In sports broadcasting, the moment-to-moment verbal description of on-screen action provided by the main commentator (e.g., who has the puck, who is passing to whom). Because play-by-play describes what sighted viewers can see, it largely duplicates visual information for Deaf…
- Pop-on Captions(also: Pop-on style, Block captions)
- A captioning display style in which a complete caption appears on screen as a single block, remains visible for a readable duration, and is then replaced in one transition by the next block. Pop-on captions let viewers "glance and grab" an entire sentence at once, which viewer…
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