noun (1)
\ˈkäg \

Definition of cog 

(Entry 1 of 5)

1 : a tooth on the rim of a wheel or gear

2 : a subordinate but integral person or part


verb (1)
cogged; cogging

Definition of cog (Entry 2 of 5)

intransitive verb

1 obsolete : to cheat in throwing dice

2 obsolete : deceive

3 obsolete : to use venal flattery

transitive verb

1 : to direct the fall of (dice) fraudulently

2 obsolete : wheedle


verb (2)
cogged; cogging

Definition of cog (Entry 3 of 5)

transitive verb

: to connect (timbers, joists, etc.) by means of mortises and tenons


noun (2)

Definition of cog (Entry 4 of 5)

: a tenon on a beam or timber

Definition of cog (Entry 5 of 5)


Other Words from cog

Noun (1)

cogged \ˈkägd \ adjective

First Known Use of cog

Noun (1)

13th century, in the meaning defined at sense 1

Verb (1)

1532, in the meaning defined at intransitive sense 1

Verb (2)

1823, in the meaning defined above

Noun (2)

1830, in the meaning defined above

History and Etymology for cog

Noun (1)

Middle English cogge, of Scandinavian origin; akin to Swedish kugge cog

Verb (1)

obsolete cog a trick

Verb (2)

probably alteration of cock to cog

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The first known use of cog was in the 13th century

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More Definitions for cog


\ˈkäg \

Kids Definition of cog

: a tooth on the rim of a wheel or gear

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Comments on cog

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one that holds something together

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