'Latchkey' definitions:
Definition of 'latchkey'
(from WordNet)
noun
Key for raising or drawing back a latch or opening an outside door
Definition of 'Latchkey'
From: GCIDE
- Latchkey \Latch"key`\, n. A key used to raise, or throw back, the latch of a door, esp. a night latch. [1913 Webster]