Definitions for "Alternative and Augmentative Communication"
Augmentative and Alternative Communication (AAC) is the term used to describe methods of communication that can be used to add to the more usual methods of speech and writing when these are impaired.
AACs are any device, system or method that improves the ability of a student with communication impairment to communicate effectively.
Any method a person uses to communicate in addition to, or instead of, speech.