plural noun

acous·​tics ə-ˈkü-stiks How to pronounce acoustics (audio)
singular in construction : a science that deals with the production, control, transmission, reception, and effects of sound
also acoustic ə-ˈkü-stik How to pronounce acoustics (audio) : the qualities that determine the ability of an enclosure (such as an auditorium) to reflect sound waves in such a way as to produce distinct hearing

Examples of acoustics in a Sentence

Recent Examples on the Web The receiver is also equipped with YPAO (Yamaha Parametric Room Acoustic Optimizer), which corrects the sound for differences in a room’s acoustics to create the ideal listening environment. Mark Sparrow, Forbes, 6 Jan. 2023 Vaillant has altered the angle of the blades and cut zigzagged notches into their edges, testing the results in an acoustics room on the premises of their factory. Patrick Junker Patrick Junker, New York Times, 2 Dec. 2022 What Hi-Fi interviewed Esge Andersen, an engineer from Apple’s acoustics team. José Adorno, BGR, 25 Nov. 2022 Ryota Shimokura, an acoustics researcher at Osaka University in Japan, subscribes to this idea and does not think spectral features alone can control ASMR. Ida Emilie Steinmark, Discover Magazine, 17 Nov. 2022 And the extensively adjustable acoustics supply a rich, spacious sound. Dallas News, 4 May 2022 Expect improved acoustics and cooling, which ultimately mean a smoother gaming experience. PCMAG, 13 Jan. 2023 Most of the instruments were acoustic — only one electric baritone guitar is present among two acoustics, a mandolin and a Dobro. Tom Roland, Billboard, 29 Nov. 2022 That’s one reason why acoustics, which can be monitored from afar, could be so valuable. Nell Lewis, CNN, 27 Sep. 2022 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'acoustics.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


acoust(ic) + -ics

First Known Use

1683, in the meaning defined at sense 1

Time Traveler
The first known use of acoustics was in 1683

Dictionary Entries Near acoustics

Cite this Entry

“Acoustics.” Dictionary, Merriam-Webster, Accessed 1 Oct. 2023.

Kids Definition


noun singular or plural
acous·​tics ə-ˈkü-stiks How to pronounce acoustics (audio)
: a science dealing with sound
also acoustic
: the qualities in an enclosed space (as an auditorium) that make it easy or hard for a person in it to hear distinctly

Medical Definition


noun, plural in form but singular in construction
acous·​tics ə-ˈkü-stiks How to pronounce acoustics (audio)
: a science that deals with the production, control, transmission, reception, and effects of sound

More from Merriam-Webster on acoustics

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!