Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
Search results
- Communication Board(also: AAC Board, Symbol Board, Choice Board)
- A low-tech or digital display of symbols, pictures, words, or phrases arranged on a surface that a person with complex communication needs can point to, touch, or select to express messages. Communication boards can be static (fixed vocabulary on a single page) or dynamic…
- Communication Rate(also: Communication Speed)
- The speed at which a person can convey messages, typically measured in words per minute (WPM). For AAC users, communication rate is often significantly slower than natural speech (100-200 WPM)—unaided AAC users may achieve only 2-10 WPM with scanning systems, while more advanced…
- Complex Communication Needs(also: CCN)
- A term describing the communication challenges faced by individuals who cannot rely on speech alone to meet all their communication needs in daily life. People with complex communication needs may use a combination of speech, gestures, sign language, communication boards, and…
- Core Vocabulary(also: Core Words)
- A small set of high-frequency words — typically pronouns, verbs, adjectives, and prepositions — that make up approximately 80% of what people say in everyday communication. Examples include words like "I," "want," "go," "more," "help," and "that." In AAC practice, core…
4 results.