Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Natural Language Query(also: NLQ, Conversational Query, Natural Language Search)
- An interaction paradigm where users pose questions or issue commands in everyday language rather than using structured search syntax, predefined filters, or navigation controls. In accessibility contexts, natural language querying is particularly valuable for screen reader users…
- Non-Verbal Communication(also: Nonverbal Communication, NVC, Body Language)
- Communication through means other than spoken or written words, including facial expressions, eye contact, gestures, body posture, touch, tone of voice, and spatial behavior. Non-verbal communication conveys emotions, attitudes, and social signals that complement, modify, or…
- Nonspeech Audio(also: Non-Speech Sounds, Auditory Cues)
- Audio feedback in user interfaces that conveys information through sounds other than synthesized or recorded speech, including earcons (abstract musical motifs), auditory icons (realistic sounds representing actions or objects), and sonification (data mapped to sound…
- Nonvisual Interaction(also: Eyes-Free Interaction, Screenless Interaction)
- Interaction with computing devices without relying on visual feedback, using alternative channels such as audio, tactile, or proprioceptive cues. Nonvisual interaction is essential for blind and low-vision users but also benefits sighted users in eyes-busy contexts like driving…
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