barn vs mow

barn and mow both are nouns.

Word	Noun	Adjective	Verb	Adverb
barn	Yes	No	No	No
mow	Yes	No	Yes	No

barn (noun)	mow (noun)
an outlying farm building for storing grain or animal feed and housing farm animals	a loft in a barn where hay is stored
(physics) a unit of nuclear cross section; the effective circular area that one particle presents to another as a target for an encounter

barn (verb)	mow (verb)
	make a sad face and thrust out one's lower lip
	cut with a blade or mower