proposal of marriage(n = noun.communication) marriage offer, marriage proposal, proposal - an offer of marriage;
is a kind of offer, offering
has particulars: question

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