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AAC

American  

abbreviation

  1. American Athletic Conference.

  2. Advanced Audio Coding: a set of standards and a file format for the encoding and compression of digital audio data, or a file compressed in this format: designed to achieve higher sound quality than MP3.

  3. augmentative and alternative communication: the clinical practice or study of systems of communication for people with significant speech difficulties or other communication disorders, usually using symbols and often assistive devices.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.