cog

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cog /ˈkɑːg/ noun
plural cogs
cog
/ˈkɑːg/
noun
plural cogs
Learner's definition of COG
[count]
: any one of the small parts that stick out on the outer edge of a wheel or gear and that allow it to turn along with another wheel or gear
: cogwheel
: someone or something that is thought of as being like a part of a machine often used to describe someone who is regarded as an unimportant part of a large business or organization
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