- 1related to sound or to the sense of hearing
- 2[usually before noun] (of a musical instrument or performance) designed to make natural sound, not sound produced by electrical equipment an acoustic guitar
acoustic
adjectiveNAmE//əˈkustɪk//
(also acoustical NAmE//əˈkustɪkl//
)NAmE//əˈkustɪkli//
adverbSee acoustic in the Oxford Advanced Learner's DictionaryCheck pronunciation: acoustic