Keyhole

n.	1.	A hole or apertupe in a door or lock, for receiving a key.
	2.	(Carp.) A hole or excavation in beams intended to be joined together, to receive the key which fastens them. Keyhole limpet (Zool.) a marine gastropod of the genus Fissurella and allied genera. See Fissurella. Keyhole saw a narrow, slender saw, used in cutting keyholes, etc., as in doors; a kind of compass saw or fret saw. Keyhole urchin (Zool.) any one of numerous clypeastroid sea urchins, of the genera Melitta, Rotula, and Encope; - so called because they have one or more perforations resembling keyholes.

Noun

1.

keyhole - the hole where a key is inserted

To dream that you are peeping through a keyhole, forewarns that you will be in danger of hurting a good friend by revealing a secret. To dream that you catch others peeping through a keyhole, forewarns that you should be cautious of jealous friends who try to blemish your reputation. To dream that you cannot find the keyhole in the dark, signifies that you have unconsciously hurt a friend's feeling.air hole, armhole, blowhole, bullet-hole, bunghole, cringle, deadeye, eye, eyelet, gasket, grommet, guide, knothole, loop, loophole, manhole, mousehole, peephole, pigeonhole, pinhole, placket, placket hole, porthole, punch-hole, spiracle, tap, vent, venthole