drum

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

the sound of a drum; "he could hear the drums before he heard the fifes"

a bulging cylindrical shape; hollow with flat ends

a cylindrical metal container used for shipping or storage of liquids

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

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

make a rhythmic sound; "Rain drummed against the windshield"; "The drums beat all night"

play a percussion instrument

study intensively, as before an exam; "I had to bone up on my Latin verbs before the final exam"