Definitions

1. adjective

relating to or used for augmenting or increasing something, especially speech or communication for people with speech or language disorders

“She was a speech therapist specializing in augmentative communication methods.”

2. noun

a device or system used to augment or increase speech or communication, especially for people with speech or language disorders

“The patient used an augmentative device to express her thoughts and feelings.”

3. adverb

in a way that augments or increases something, especially speech or communication

“She communicated augmentatively through her gestures and body language.”