family vs sib

family and sib both are nouns.

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

family (noun)	sib (noun)
primary social group; parents and children	one related by blood or origin; especially on sharing an ancestor with another
people descended from a common ancestor	a person's brother or sister
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