storage locker vs compartment

storage locker and compartment both are nouns.

Word	Noun	Adjective	Verb	Adverb
storage locker	Yes	No	No	No
compartment	Yes	No	No	No

As nouns, compartment is a hypernym of storage locker; that is, compartment is a word with a broader meaning than storage locker:

storage locker: a storage compartment for clothes and valuables; usually it has a lock
compartment: a partitioned section, chamber, or separate room within a larger enclosed area

storage locker (noun)	compartment (noun)
a storage compartment for clothes and valuables; usually it has a lock	a partitioned section, chamber, or separate room within a larger enclosed area
	a space into which an area is subdivided