Definition of "Drum" :

noun: small to medium-sized bottom-dwelling food and game fishes of shallow coastal and fresh waters that make a drumming noise

noun: a hollow cast iron cylinder attached to the wheel that forms part of the brakes

noun: a musical percussion instrument; usually consists of a hollow cylinder with a membrane stretched across each end

noun: a cylindrical metal container used for shipping or storage of liquids

noun: the sound of a drum

"He could hear the drums before he heard the fifes."

noun: a bulging cylindrical shape; hollow with flat ends

verb: study intensively, as before an exam

verb: play a percussion instrument

verb: make a rhythmic sound

"Rain drummed against the windshield."