What does key mean?
key
Plural: lock keys
Definition
A small shaped implement that fits into a matching lock to open or secure it, such as a car's ignition or door lock.
Example sentences
Try this key gently; the last copy wouldn't turn in the lock.
Try this key gently; the last copy wouldn't turn in the lock.
Dad dropped his only key down a drain, so we're making a spare this time.
Dad dropped his only key down a drain, so we're making a spare this time.