WordNet sense 1 (a person having kinship with another or others):

kin, kinsperson

WordNet sense 2 (a loose affiliation of gangsters in charge of organized criminal activities):

mob, syndicate, syndicate, crime syndicate

WordNet sense 3 (an association of people who share common beliefs or activities):

fellowship

WordNet sense 4 (a social unit living together):

home, house, household, menage, house

WordNet sense 5 (a collection of things sharing a common attribute):

category, class

WordNet sense 6 (people descended from a common ancestor):

folk, kinfolk, kinsfolk, phratry, sept, family line

WordNet sense 7 (primary social group; parents and children):

family unit