3 definitions found

From The Collaborative International Dictionary of English v.0.44 [gcide]:

Keyhole \Key"hole'\, noun

1. A hole or apertupe in a door or lock, for receiving a key.

2. (a) (Carp.) A hole or excavation in beams intended to be joined together, to receive the key which fastens them. (b) (Mach.) a mortise for a key or cotter.

{Keyhole limpet} (Zo["o]l.), 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} (Zo["o]l.), 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.

From WordNet (r) 2.0 [wn]:

keyhole

noun

From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:

28 Moby Thesaurus words for "keyhole": 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