From Wiktionary, the free dictionary
Sino-Vietnamese word from 愛女, composed of 愛 (“beloved”) and 女 (“female”).
ái nữ
- (formal, chiefly on wedding invitation cards or at weddings) an/the only daughter
- Synonym: quý nữ
- Coordinate terms: quý nam, thứ nam, thứ nữ, trưởng nam, trưởng nữ, út nam, út nữ