marriage of convenience(n = noun.state) - a marriage for expediency rather than love;
is a kind of marriage, matrimony, spousal relationship, union, wedlock

civil marriage, common-law marriage, convenience, convenience food, convenience store, dissolution of marriage, marriage, marriage bed, marriage broker, marriage brokerage, marriage ceremony, marriage contract, marriage counseling, marriage licence, marriage license, marriage mart, marriage offer, marriage proposal, marriage settlement, mixed marriage, open marriage, outside marriage, proposal of marriage, public convenience, same-sex marriage