• WordNet 3.6
    • n keyhole the hole where a key is inserted
    • ***
Webster's Revised Unabridged Dictionary
    • Keyhole A hole or apertupe in a door or lock, for receiving a key.
    • Keyhole A hole or excavation in beams intended to be joined together, to receive the key which fastens them.
    • Keyhole a mortise for a key or cotter.
    • ***
Century Dictionary and Cyclopedia
    • n keyhole A hole or aperture in a door or lock for receiving a key.
    • n keyhole In carpentry, a hole or excavation passing through beams intended to be joined together, to receive the key which fastens them.—'
    • n keyhole A small piece of water connected with a lake or other larger body; a little lake or bay.
    • keyhole To strike lengthwise, cutting in the target a hole which resembles a keyhole: said of a bullet in target-shooting.
    • ***
Chambers's Twentieth Century Dictionary
    • ns Keyhole the hole in which a key of a door, &c., is inserted
    • ***


  • Mary Mccarthy
    “Every age has a keyhole to which its eye is pasted.”
  • Arthur Koestler
    “Scientists are peeping toms at the keyhole of eternity.”


Chambers's Twentieth Century Dictionary
A.S. cæg, a key.


In literature:

He tried to peer through the keyhole, but it was blocked.
"The Grey Wig: Stories and Novelettes" by Israel Zangwill
She had it in the back of her mind that she meant to get little brass handles and keyholes for the bureau also.
"The Witness" by Grace Livingston Hill Lutz
If you are present and hear me, please step to this door and look into the keyhole.
"Eveline Mandeville" by Alvin Addison
Here's the New York Keyhole Reporter!
"Fifth Avenue" by Arthur Bartlett Maurice
Pretty soon she heard the sweet little rustling noise at the keyhole.
"Stories to Tell Children" by Sara Cone Bryant
Could they all be asleep, or was Miss McEvoy watching us through the keyhole?
"All on the Irish Shore" by E. Somerville and Martin Ross
At last I put my mouth to the keyhole and spoke to her.
"Jacqueline of Golden River" by H. M. Egbert
Then he, too, bent down and examined the keyhole.
"Sally Bishop" by E. Temple Thurston
And then she peeped in at the keyhole, for she was not at all a well-brought-up little girl.
"English Fairy Tales" by Flora Annie Steel
The Inspector placed his ear to the keyhole.
"The Black Box" by E. Phillips Oppenheim

In poetry:

Through keyhole he enters
And stands at thy side,
Doors of wood nor of stone
Against him provide.
"Gossip" by Ivan Nikitin
While Twardowski taunts and teases
And attempts to bar his way,
Through the keyhole, out he squeezes
And is running yet, they say.
"Twardowski's Wife" by Adam Mickiewicz
Inside on a sofa, two barmaids between,
With one on his knee was a gentleman seen;
And any chance eye at the keyhole could see
In less than a wink ’twas O’Hara, J.P.
"O'Hara, J.P." by Henry Lawson
In number ten or twelve, or even more,
They fastened me full length upon the floor.
On my face extended flat,
I was walloped with a cat
For listening at the keyhole of a door.
"The Story of Prince Agib" by William Schwenck Gilbert
The Winter Wind, the wind of death,
Who knocked upon my door,
Now through the keyhole entereth,
Invisible and hoar:
He breathes around his icy breath
And treads the flickering floor.
"The Wind Of Winter" by Madison Julius Cawein
Upstairs might they venture, in dirt and in gloom,
To peep at the door of the wonderful room
Such stories are told about, none of them true!--
The keyhole itself has no mortal seen through.
"The Dirty Old Man" by William Allingham

In news:

Outside Through The Keyhole 07.
Isabella Rossellini and David Wontner in ' Keyhole .'.
Keyhole Surgery Demands Operating Room Upgrades.
Keyhole State Park nixes fires.
Open fires are now banned at Keyhole State Park.
' Keyhole ': a mad Maddin adventure.
The Wind Through the Keyhole By Stephen King Scribner 309 pp.
The latest phantasmagoria of cinematic quotation from Canadian director Guy Maddin, Keyhole is an extremely loose adaptation of The Odyssey.
In ' Keyhole ,' a surrealist director channels a love of old movies.
The Wind Through the Keyhole .
Guy Maddin's ' Keyhole ' Wins Top Canadian Feature Prize At Whistler Film Festival.
Oh well never did have much luck at keyhole anyway.
A Video Artist Who Talks Through a Keyhole .
Everybody knows by now about the Erin Andrews incident—in which the model-gorgeous ESPN reporter was videotaped in the nude, allegedly through a keyhole in the door to her hotel room.
In 'Keyhole,' a surrealist director channels a love of old movies.

In science:

With an open interface available on Linux, Mac OS X and Windows, applications developed within Sky are accessible not just within the Google framework but through any visual browser that supports the Keyhole Markup Language.
Sky in Google Earth: The Next Frontier in Astronomical Data Discovery and Visualization
Most of the methods for putting data into Sky involve some use of Keyhole Markup Language (KML).
Sky in Google Earth: The Next Frontier in Astronomical Data Discovery and Visualization
Lee, “Capacity of multiple-antenna fading channels: Spatial fading correlation, double scattering and keyhole,” IEEE Trans.
Transmit Diversity v. Spatial Multiplexing in Modern MIMO Systems