[dìng hūn]
be engaged to; be betrothed to; engage; promise to marry; give one's hand to sb.; agree to marry; plight; oneself to sb. reach an agreement to marry sb.; enter into betrothal; bind oneself in marriage; engagement; [古] troth plight
Tom is engaged to Anne.
汤姆已与安妮订婚。
His daughter was betrothed to a teacher.
他的女儿同一个教师订了婚。