maid of honour

Từ điển Oxford Advanced Learner 8th

ˌmaid of ˈhonour [maid of honour] BrE NAmE (especially US ˌmaid of ˈhonor) noun (pl. maids of honour/honor)
(especially in the US) a young woman or girl who is not married and who is the main ↑bridesmaid at a wedding
compare ↑matron of honour