keeper vs custodian

keeper and custodian both are nouns.

Word	Noun	Adjective	Verb	Adverb
keeper	Yes	No	No	No
custodian	Yes	No	No	No

As nouns, keeper and custodian are synonyms defined as:

keeper and custodian: one having charge of buildings or grounds or animals

Other synonyms of keeper include steward.

keeper (noun)	custodian (noun)
one having charge of buildings or grounds or animals	one having charge of buildings or grounds or animals
someone in charge of other people