noun🔗ShareA medicine or other agent to assist hearing."The doctor prescribed an acoustic to help improve his grandfather's hearing. "medicineaidsoundChat with AIVocabulary GamePractice Reading
adjective🔗SharePertaining to the sense of hearing, the organs of hearing, or the science of sounds; auditory."The acoustic panels in the music room helped to reduce distracting noises. "soundmusicphysicstechnologysensationentertainmentChat with AIVocabulary GamePractice Reading
adjective🔗ShareNaturally producing or produced by an instrument without electrical amplification, as an acoustic guitar or acoustic piano."My grandpa plays an acoustic guitar beautifully, filling the room with music without any speakers or amplifiers. "musicsoundtechnologyelectronicsChat with AIVocabulary GamePractice Reading
noun🔗Share(retronym) A hollow-body guitar of the older variety, in contradistinction to an electric guitar."My grandfather's music collection included several acoustic guitars, all from different decades. "musicsoundChat with AIVocabulary GamePractice Reading