2. (noun)doorbell, bell, buzzer a pushbutton at an outer door that gives a ringing or buzzing signal when pushed
3. (noun)bell, toll the sound of a bellbeing struck "saved by the bell"; "she heard the distant toll of church bells"
4. (noun)bell, ship's bell (nautical) each of the eighthalf-hour units of nautical time signaled by strokes of a ship's bell; eight bells signals 4:00, 8:00, or 12:00 o'clock, either a.m. or p.m.
5. (noun)bell, bell shape, campana the shape of a bell