shack up

English Thesaurus

1. share living quarters; usually said of people who are not married and live together as a couple (verb.stative)

hypernym	:	dwell, inhabit, live, populate,
definition	:	inhabit or live in; be an inhabitant of (verb.stative)

hyponym	:	miscegenate,
definition	:	marry or cohabit with a person of another race (verb.stative)

derivation	:	cohabitation,
definition	:	the act of living together and having a sexual relationship (especially without being married) (noun.act)

derivation	:	cohabitation,
definition	:	the act of living together and having a sexual relationship (especially without being married) (noun.act)