门当户对

1.a marriage between families of equal social rank; couples coming from families of equal status; (families related by marriage) equal in social status; marry into a proper family; marry one's own kind of people; (of two related families linked by marriage) of equal status [prestige]; The families of the bride and bridegroom are of equal position in the social scale.; The two families are fairly well matched.; The two families are of equal rank.; Two families match in social status.; well-matched in social and economic status