Related topics: Daily life
latch·key /ˈlætʃkiː/ noun [countableC] 1. Da key that opens a lock on an outside door of a house or an apartment 〔房子或公寓大门的〕碰锁钥匙
2. latchkey kid old-fashionedSSC a child whose parents both work and who spends time alone in the house after school 挂钥匙的儿童〔指父母皆工作、放学后独自在家的孩子〕