latchkey childBrE /ˈlætʃkiː tʃaɪld/ 🔊NAmE /ˈlætʃkiː tʃaɪld/ 🔊 (also ˈlatchkey kid) noun (usually disapproving) a child who is at home alone after school because both parents are at work （因父母双双上班放学后独自在家的）挂钥匙儿童