A knob at the end of a cannon, cast onto the gun breech, to which a heavy rope is attached in order to control recoil.
A small, round, hot variety of chili pepper, Capsicum annuum, which rattles when dry.
A bell attached to a sleigh or sleigh harness.
A small, hollow, spherical metal bell with a narrow slit opening or small holes, containing a loose ball or rod as a clapper, which is attached to a horse's harness as a signal, or (music) used as a musical instrument.