Bible Dictionaries
Keyhole

Webster's Dictionary

(1):

(n.) a mortise for a key or cotter.

(2):

(n.) A hole or apertupe in a door or lock, for receiving a key.

(3):

(n.) A hole or excavation in beams intended to be joined together, to receive the key which fastens them.

Bibliography Information
Webster, Noah. Entry for 'Keyhole'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​k/keyhole.html. 1828.