drum vs drummer

drum and drummer both are nouns.

Word	Noun	Adjective	Verb	Adverb
drum	Yes	No	Yes	No
drummer	Yes	No	No	No

drum (noun)	drummer (noun)
small to medium-sized bottom-dwelling food and game fishes of shallow coastal and fresh waters that make a drumming noise	someone who plays a drum
a musical percussion instrument; usually consists of a hollow cylinder with a membrane stretched across each end
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
the sound of a drum
a bulging cylindrical shape; hollow with flat ends

drum (verb)	drummer (verb)
study intensively, as before an exam
play a percussion instrument
make a rhythmic sound