IPA: /əˈkuːstɪʃən/
KK: /əˈkuːstɪʃən/
A person who studies sound and how it travels, often working in fields like music, engineering, or architecture.
The acoustician was called to improve the sound quality in the concert hall.
Acoustician → It is formed from "acoustics" (from Greek "akoustikos", meaning of hearing) and "-ian" (a suffix meaning relating to or one who practices). An acoustician is a person who specializes in the science of sound and hearing.
Think of someone who studies the science of 'hearing' ('acoustics') — the '-ian' suffix indicates that this person is a specialist in that field.