bass
US /beɪs/
UK /beɪs/

1.
the lowest adult male singing voice
:
•
He sings bass in the choir.
•
The opera requires a strong bass.
2.
3.
the lowest part of the musical range
:
•
The cello plays the bass line.
•
Turn up the bass on the stereo.
4.
a stringed musical instrument of the violin family, larger than a cello, used to play bass parts
:
•
He plays the double bass in the orchestra.
•
The band needs a new bass player.