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cog1

[kog, kawg] /kɒg, kɔg/
noun
1.
(not in technical use) a gear tooth, formerly especially one of hardwood or metal, fitted into a slot in a gearwheel of less durable material.
2.
3.
a person who plays a minor part in a large organization, activity, etc.:
He's just a small cog in the financial department.
verb (used without object), cogged, cogging.
4.
(of an electric motor) to move jerkily.
verb (used with object), cogged, cogging.
5.
to roll or hammer (an ingot) into a bloom or slab.
Idioms
6.
slip a cog, to make a blunder; err:
One of the clerks must have slipped a cog.
Origin
1200-1250
1200-50; Middle English cogge, probably < Scandinavian; compare Swedish, Norwegian kugg cog

cog2

[kog, kawg] /kɒg, kɔg/
verb (used with object), cogged, cogging.
1.
to manipulate or load (dice) unfairly.
verb (used without object), cogged, cogging.
2.
to cheat, especially at dice.
Origin
1525-35; origin uncertain

cog3

[kog, kawg] /kɒg, kɔg/
noun
1.
Carpentry. (in a cogged joint) the tongue in one timber, fitting into a corresponding slot in another.
2.
Mining. a cluster of timber supports for a roof.
Compare chock (def 4).
verb (used with object), verb (used without object), cogged, cogging.
3.
Carpentry. to join with a cog.
Origin
1855-60; special use of cog1; replacing cock in same sense, special use of cock1 (in sense of projection); see coak
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for cogs
  • All the myriad cogs mesh because their structures are isomorphic.
  • The clock metaphor was also a key for understanding the mechanism as a collection of interacting cogs and wheels.
  • The high initial investment costs of nuclear power are largely because of the hamster-and-cogs regulatory system.
  • It is as though they are exempt from social responsibility since they are mere economic cogs.
  • We need to be reminded that people aren't simply cogs in a machine and that community and family matters.
  • Accounts of life under the regime therefore remained sketchy, our understanding of what made its cogs turn greatly deficient.
  • Even mighty industrial machines cannot survive without tiny cogs.
  • His choices of which cogs in the social system to emphasize are extremely revealing.
  • The failures of credit rating agencies were essential cogs in the wheel of financial destruction.
  • Lots of people went into astronomy in part because they didn't want to be cogs in a large particle experiment.
British Dictionary definitions for cogs

cog1

/kɒɡ/
noun
1.
any of the teeth or projections on the rim of a gearwheel or sprocket
2.
a gearwheel, esp a small one
3.
a person or thing playing a small part in a large organization or process
verb cogs, cogging, cogged
4.
(transitive) (metallurgy) to roll (cast-steel ingots) to convert them into blooms
Word Origin
C13: of Scandinavian origin; compare Danish kogge, Swedish kugge, Norwegian kug

cog2

/kɒɡ/
verb cogs, cogging, cogged
1.
(slang) to cheat (in a game, esp dice), as by loading a dice
Word Origin
C16: originally a dice-playing term, of unknown origin

cog3

/kɒɡ/
noun
1.
a tenon that projects from the end of a timber beam for fitting into a mortise
verb cogs, cogging, cogged
2.
(transitive) to join (pieces of wood) with cogs
Word Origin
C19: of uncertain origin
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 cogs
cog
"tooth on a wheel," mid-13c., probably a borrowing from a Scandinavian language (cf. Norwegian kugg "cog").
Online Etymology Dictionary, © 2010 Douglas Harper
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Idioms and Phrases with cogs
In addition to the idiom beginning with cog also see: slip a cog
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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7
9
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