cello B2

/ˈt͡ʃɛloʊ/ A large wooden string instrument played with a bow while seated.

violoncello C2+

/ˌviːələnˈtʃɛloʊ/ the full formal name for the cello, a bowed string instrument

violoncellist C2+

/ˌvaɪələnˈtʃɛlɪst/ a person who plays the violoncello (cello)