tribe vs genealogy

tribe and genealogy both are nouns.

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

As nouns, genealogy is a hyponym of tribe; that is, genealogy is a word with a more specific, narrower meaning than tribe:

tribe (noun)	genealogy (noun)
a social division of (usually preliterate) people	the study or investigation of ancestry and family history
a federation (as of American Indians)	successive generations of kin
group of people related by blood or marriage
(biology) a taxonomic category between a genus and a subfamily