Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “acoustic”

See all translations

acoustic

adjective uk   /əˈkuː.stɪk/ us  
relating to sound or hearing: The microphone converts acoustic waves to electrical signals for transmission. used to refer to a musical instrument that is not made louder by electrical equipment: an acoustic guitar

acoustic

noun [C usually plural] uk   /əˈkuː.stɪk/ us  
the way in which the structure of a building or room affects the qualities of musical or spoken sound: The concert was recorded in a church that is famous for its acoustics.
acoustically
adverb uk   /-stɪ.kəl.i/ us  
(Definition of acoustic from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of acoustic?
Add Cambridge dictionaries to your browser to your website

Definitions of “acoustic” in other dictionaries

Word of the Day

christmassy

typical of Christmas, or happy because it is Christmas

Word of the Day

Cleavage proves divisive in Cambridge’s words of 2014

by Alastair Horne,
December 19, 2014
​​​​ Other dictionaries may choose faddish novelties as their words of the year, but here at Cambridge, we like to do something different. We look for the words that have seen sudden surges in searches over the course of the year – words that have been baffling users of English and driven them

Read More 

tweleb noun

December 22, 2014
informal a Twitter celebrity; (more specifically, someone who has more than 1,000 followers on Twitter) There were a few old and a few new faces, including a tweleb or two. Expect to see and hear more from these cool kids.

Read More