bloodline vs family

bloodline and family both are nouns.

Word	Noun	Adjective	Verb	Adverb
bloodline	Yes	No	No	No
family	Yes	No	No	No

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

Other hyponyms of bloodline include family line, folk, kinfolk, kinsfolk, phratry, sept, side, breed line.

bloodline (noun)	family (noun)
ancestry of a purebred animal	primary social group; parents and children
the hereditary derivation of an individual	people descended from a common ancestor
	a social unit living together
	(biology) a taxonomic group containing one or more genera
	a collection of things sharing a common attribute
	an association of people who share common beliefs or activities
	a loose affiliation of gangsters in charge of organized criminal activities
	a person having kinship with another or others