IPA: /ˈvaɪ.lɪ.nɪst/
KK: /vaɪəˈlɪnɪst/
A person who plays the violin.
The violinist performed beautifully at the concert.
Violinist → It is formed from "violin" (from Italian *violino*, a diminutive of *viola*, meaning a stringed instrument) and "-ist" (meaning one who practices or is concerned with). The word "violinist" refers to a person who plays the violin.
Think of a 'violin' as a stringed instrument and '-ist' meaning someone who plays it — a violinist is someone who plays the violin.