locker room vs locker

locker room and locker both are nouns.

Word	Noun	Adjective	Verb	Adverb
locker room	Yes	No	No	No
locker	Yes	No	No	No

locker room (noun)	locker (noun)
a room (as at an athletic facility or workplace) where you can change clothes and which contains lockers for the temporary storage of your clothing and personal possessions	a storage compartment for clothes and valuables; usually it has a lock
	a trunk for storing personal possessions; usually kept at the foot of a bed (as in a barracks)
	a fastener that locks or closes