tribe vs relative

tribe and relative both are nouns.

Word	Noun	Adjective	Verb	Adverb
tribe	Yes	No	No	No
relative	Yes	Yes	No	No

tribe (noun)	relative (noun)
a social division of (usually preliterate) people	an animal or plant that bears a relationship to another (as related by common descent or by membership in the same genus)
a federation (as of American Indians)	a person related by blood or marriage
group of people related by blood or marriage
(biology) a taxonomic category between a genus and a subfamily

tribe (adjective)	relative (adjective)
	estimated by comparison; not absolute or complete
	properly related in size or degree or other measurable characteristics; usually followed by `to'