Pronunciation

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Adjective

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Positive
acoustic

Comparative
none

Superlative
none

 
An acoustic guitar
  1. Related to hearing or sounds.
  2. (music) An acoustic instrument is played without electricity.
    I think music from an acoustic guitar is prettier than music from an electric guitar.

Singular
acoustic

Plural
acoustics

  1. (countable) If a space has good acoustics (or sometimes acoustic) its physical structure makes it easy to hear sound in it.
    She hated singing in the gym because of the poor acoustics.
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