latchkey

/ˈlætʃˌkiː/
noun
  1. A key for opening a door or gate, especially one with a latch.
    • The old latchkey was rusty but still worked perfectly.
    • She kept a latchkey hidden under the doormat for emergencies.
    • He fumbled in his pocket for the latchkey to the back door.
  2. Used in the phrase 'latchkey child' to refer to a child who is often home alone after school because their parents are at work.
    • She grew up as a latchkey child and learned to cook for herself.
    • The after-school program was created to support latchkey kids.
    • Many latchkey children learn to be independent at a young age.
Synonyms