bargeman vs tar

bargeman and tar both are nouns.

Word	Noun	Adjective	Verb	Adverb
bargeman	Yes	No	No	No
tar	Yes	No	Yes	No

As nouns, tar is a hypernym of bargeman; that is, tar is a word with a broader meaning than bargeman:

Other hypernyms of bargeman include gob, Jack-tar, Jack, mariner, old salt, sea dog, seafarer, seaman.

bargeman (noun)	tar (noun)
someone who operates a barge	a man who serves as a sailor
	any of various dark heavy viscid substances obtained as a residue

bargeman (verb)	tar (verb)
	coat with tar