Dictionary definition · drum
noun
- 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, commonly 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
verb
- make a rhythmic sound"Rain drummed against the windshield"
- play a percussion instrument
- study intensively, as before an exam"I had to bone up on my Latin verbs before the final exam"
Source: Open English WordNet (CC BY 4.0).