keykeeper
nounUK /ˈkiːˌkiːpə/
US /ˈkiːˌkiːpər/
A keykeeper is a person who takes care of keys.
The keykeeper unlocked the school gate every morning.
OTHER MEANINGS
2. A small box or hook where keys are kept.
She hung the spare key on the keykeeper by the door.
3. A person trusted to guard something valuable.
As keykeeper of the family secrets, he never told anyone.
4. A ring or chain that holds keys together.
He clipped the car key onto his keykeeper.