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sill

[sil] /sɪl/
noun
1.
a horizontal timber, block, or the like serving as a foundation of a wall, house, etc.
2.
the horizontal piece or member beneath a window, door, or other opening.
3.
Geology. a tabular body of intrusive igneous rock, ordinarily between beds of sedimentary rocks or layers of volcanic ejecta.
Origin of sill
900
before 900; Middle English sille, Old English syl, sylle; cognate with Low German süll, Old Norse syll; akin to German Schwelle sill
Related forms
sill-like, adjective
undersill, noun

Sill

[sil] /sɪl/
noun
1.
Mount, a mountain in E central California, in the Sierra Nevada Mountains. 14,153 feet (4314 meters).
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for sill
Contemporary Examples
Historical Examples
  • He flung a leg over the sill and drew himself gently into the room.

    Happy Days Alan Alexander Milne
  • Presently the rod must have tapped the sill, with such a start did she face about.

    The Cavalier George Washington Cable
  • Later, two bright stars close together appeared through the open doorway about a foot above the sill.

    Camps and Trails Henry Abbott
  • She put her elbows on the sill of the window and rested her face in her hands.

    A Spirit in Prison Robert Hichens
  • It was futile, of course, but this time it seemed to him that the sill and the plank to which it was attached gave a little.

    The Woman-Haters Joseph C. Lincoln
  • I'll get on the sill and see what I can do through the top o' the window.

    The Burning Spear John Galsworthy
  • Von Eitelwurmer, leaning over the sill of the large scuttle, peered downwards.

    Billy Barcroft, R.N.A.S. Percy F. Westerman
British Dictionary definitions for sill

sill

/sɪl/
noun
1.
a shelf at the bottom of a window inside a room
2.
a horizontal piece along the outside lower member of a window, that throws water clear of the wall below
3.
the lower horizontal member of a window or door frame
4.
a continuous horizontal member placed on top of a foundation wall in order to carry a timber framework
5.
a flat usually horizontal mass of igneous rock, situated between two layers of older sedimentary rock, that was formed by an intrusion of magma
Word Origin
Old English syll; related to Old Norse svill sill, Icelandic svoli tree trunk, Old High German swella sill, Latin solum ground
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for sill
n.

Old English syll "beam, threshold, large timber serving as a foundation of a wall," from Proto-Germanic *suljo (cf. Old Norse svill, Swedish syll, Danish syld "framework of a building," Middle Low German sull, Old High German swelli, German Schwelle "sill"), perhaps from PIE root *swel- (3) "post, board" (cf. Greek selma "beam"). Meaning "lower horizontal part of a window opening" is recorded from early 15c.

Online Etymology Dictionary, © 2010 Douglas Harper
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sill in Science
sill
  (sĭl)   
A sheet of igneous rock intruded between layers of older rock. See illustration at batholith.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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