Definitions
1.NounThe burden or bass of a melody.
2.NounThe drone pipe of a bagpipe.
3.NounThe lowest-pitched stop of an organ.
4.NounThe lowest-pitched bell of a carillon.
5.NounA large, low-pitched bell not part of a diatonically tuned ring of bells.
6.NounA bumblebee, genus Bombus.
7.NounUnadapted borrowing from French bourdon; a pilgrim's staff.