Standard Lemma guide

cog

name · noun · verb · 26 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Received-Pronunciation: kŏg
  • Received-Pronunciation: /kɒɡ/
  • General-American: kôg
  • General-American: /kɔɡ/
  • cot-caught-merger: kŏg
  • cot-caught-merger: /kɑɡ/
  • rhymes with -ɒɡ
  • rhymes with -ɔːɡ
  • Southern-England: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: K AO1 G Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

name

Meaning 1

Initialism of Church of God: numerous, mostly unrelated Christian denominations.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A tooth on a gear.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

A gear; especially, a cogwheel.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

An unimportant individual in a greater system.

Definition source: English Wiktionary via Wiktextract

Examples

  • just a cog in the machine
  • 1976, Norman Denny (English translation), Victor Hugo (original French), Les Misérables ‘There are twenty-five of us, but they don’t reckon I’m worth anything. I’m just a cog in the machine.’
  • 1988, David Mamet, Speed-the-Plow Your boss tells you “take initiative,” you best guess right—and you do, then you get no credit. Day-in, ... smiling, smiling, just a cog.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

A projection or tenon at the end of a beam designed to fit into a matching opening of another piece of wood to form a joint.

Definition source: English Wiktionary via Wiktextract

Topics: business, carpentry, construction, manufacturing

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

One of the rough pillars of stone or coal left to support the roof of a mine.

Definition source: English Wiktionary via Wiktextract

Topics: business, mining

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

A partially clinker-built, flat-bottomed, square-rigged mediaeval ship of burden or war, with a round, bulky hull and a single mast, typically 15 to 25 meters in length, in use from ca. 1150 to 1500.

Definition source: English Wiktionary via Wiktextract

Usage: historical

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

The hypothetical precursor ship type of the above said to be in use during the early Middle Ages, variously alleged to be Frisian or Scandinavian.

Definition source: English Wiktionary via Wiktextract

Usage: historical

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

noun

Meaning 9

A small fishing boat.

Definition source: English Wiktionary via Wiktextract

Usage: broadly

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

10

noun

Meaning 10

A trick or deception; a falsehood.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

11

noun

Meaning 11

Alternative form of cogue (“wooden vessel for milk”).

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, alternative

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

12

noun

Meaning 12

Initialism of center of gravity

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism

Topics: natural-sciences, physical-sciences, physics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

13

noun

Meaning 13

Initialism of center of gravity.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism

Topics: natural-sciences, physical-sciences, physics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

14

noun

Meaning 14

Initialism of cluster of galaxies

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of, initialism

Topics: astronomy, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

15

noun

Meaning 15

Abbreviation of course over ground.

Definition source: English Wiktionary via Wiktextract

Usage: abbreviation, alt-of

Topics: nautical, transport

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

16

verb

Meaning 16

To furnish with a cog or cogs.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

17

verb

Meaning 17

Of an electric motor or generator, to snap preferentially to certain positions when not energized.

Definition source: English Wiktionary via Wiktextract

Usage: intransitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

18

verb

Meaning 18

To load (a die) so that it can be used to cheat.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

19

verb

Meaning 19

To cheat; to play or gamble fraudulently.

Definition source: English Wiktionary via Wiktextract

Examples

  • 1726, Jonathan Swift (debated), Molly Mog For guineas in other men's breeches, / Your gamesters will palm and will cog.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

20

verb

Meaning 20

To seduce, or draw away, by adulation, artifice, or falsehood; to wheedle; to cozen; to cheat.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

21

verb

Meaning 21

To plagiarize.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

22

verb

Meaning 22

To obtrude or thrust in, by falsehood or deception; to palm off.

Definition source: English Wiktionary via Wiktextract

Examples

  • to cog in a word
  • October 3, 1718, John Dennis, letter to S. T. , Esq; On the Deceitfulness of Rumour Fustian tragedies [...] have [...] been cogg'd upon the town for Master-pieces.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

23

noun

Meaning 23

tooth on the rim of gear wheel

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: sprocket

Antonyms: none provided

Broader terms: tooth

24

noun

Meaning 24

a subordinate who performs an important but routine function

Definition source: Princeton WordNet 3.0

Examples

  • he was a small cog in a large machine

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: subordinate, subsidiary, underling, foot soldier

25

verb

Meaning 25

join pieces of wood with cogs

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: join, bring together

26

verb

Meaning 26

roll steel ingots

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: roll out, roll

History

Etymology

Etymology tree Proto-Indo-European *gēw- Proto-Indo-European *gugāder. Proto-Germanic *kuggōder. Old Norse *koggrbor. Middle English cogge English cog Inherited from Middle English cogge, from Old Norse *kogge, *koggr (see Old Swedish kogge, kogger), from Proto-Germanic *kuggō (“cog, swelling”), from Proto-Indo-European *gugā (“hump, ball”), from *gēw- (“to bend, arch”). Compare Lithuanian gugà (“pommel, hump, hill”). Cognates includes: Swedish kugg, kugge (“cog tooth”), Norwegian kugg (“cog”). The meaning of “cog” in carpentry derives from association with a tooth on a cogwheel. Compare Old Swedish koggavidher (“cog wood”), “wood reserved for a millwheel”. See also dialectal English cag (“stump”), keg; Old Norse kaggi (“keg”) + -gi (diminutive suffix), from the Germanic base *kagô (“bush, branch, stalk, stump”); also found in Bavarian Kag (“the stalk or stem of a cabbage”); dialectal Swedish kage (“treestump; piece of wood; post”), kagg or kagge (“scythe handle”); Norwegian Nynorsk kage or kagge (“low lying bush, small tree”), dialectal kagg (“scythe handle”); Old English ċeacga (“broom, furze, gorse”), whence English chag (“branch”), also Old English cyċġel, English cudgel (“knotty club”). The ultimate origin could be related to English cog (“cargo boat”) (Dutch kogge), probably named for its “round swollen” appearance.

From Middle English cogge, from Middle Dutch kogge, cogghe (modern kogge), from Proto-Germanic *kuggō, from Proto-Indo-European *gugā (“hump, ball”) (compare Lithuanian gugà (“pommel, hump, hill”)), from *gēw- (“to bend, arch”). See etymology 1 above.

Uncertain. Both verb and noun appear first in 1532.

Across languages

Translations

75 source translations are retained for this English entry.

  • Azerbaijani: diş — tooth on a gear
  • Belarusian: зубе́ц (zubjéc) — tooth on a gear
  • Bulgarian: зъбе́ц (zǎbéc) — tooth on a gear
  • Catalan: dent — tooth on a gear
  • Chinese Mandarin: 齒 /齿 (chǐ) — tooth on a gear
  • Czech: zub — tooth on a gear
  • Dutch: tand — tooth on a gear
  • Dutch: tandwieltand — tooth on a gear
  • Esperanto: dento — tooth on a gear
  • Finnish: hammas — tooth on a gear
  • French: dent — tooth on a gear
  • Galician: dente — tooth on a gear
  • Galician: macho — tooth on a gear
  • German: Zahn — tooth on a gear
  • Hungarian: fog — tooth on a gear
  • Indonesian: gerigi — tooth on a gear
  • Japanese: 歯 (ha) — tooth on a gear
  • Korean: 이 (i) — tooth on a gear
  • Korean: 톱니 (tomni) — tooth on a gear
  • Macedonian: запче (zapče) — tooth on a gear
  • Māori: nihowhiti — tooth on a gear
  • Norwegian: tannhjul — tooth on a gear
  • Plautdietsch: Zak — tooth on a gear
  • Polish: ząb — tooth on a gear
  • Portuguese: dente — tooth on a gear
  • Russian: зубе́ц (zubéc) — tooth on a gear
  • Scottish Gaelic: fiacaill — tooth on a gear
  • Serbo-Croatian: зу́бац — tooth on a gear
  • Serbo-Croatian: zúbac — tooth on a gear
  • Slovak: zub — tooth on a gear
  • Spanish: leva — tooth on a gear
  • Spanish: álabe — tooth on a gear
  • Spanish: levador — tooth on a gear
  • Swedish: kugge — tooth on a gear
  • Swedish: tand — tooth on a gear
  • Thai: ฟันเฟือง (fan-fʉʉang) — tooth on a gear
  • Turkish: diş — tooth on a gear
  • Ukrainian: зубе́ць (zubécʹ) — tooth on a gear
  • Welsh: dant — tooth on a gear
  • Catalan: peó — unimportant individual
  • Czech: nula — unimportant individual
  • Dutch: radertje — unimportant individual
  • Finnish: ratas — unimportant individual
  • French: pion — unimportant individual
  • Galician: badanas — unimportant individual
  • Galician: niquifate — unimportant individual
  • Galician: belanxín — unimportant individual
  • German: Rädchen — unimportant individual
  • Indonesian: nyamuk — unimportant individual
  • Italian: rotellina — unimportant individual
  • Russian: ви́нтик (víntik) — unimportant individual
  • Russian: ме́лкая со́шка (mélkaja sóška) — unimportant individual
  • Serbo-Croatian: зупчаничић — unimportant individual
  • Serbo-Croatian: шрафић — unimportant individual
  • Serbo-Croatian: zupčaničić — unimportant individual
  • Serbo-Croatian: šrafić — unimportant individual
  • Swedish: kugge — unimportant individual
  • Bulgarian: ца́пфа (cápfa) — carpentry: a projection or tenon
  • German: Zapfen — carpentry: a projection or tenon
  • Serbo-Croatian: féder — carpentry: a projection or tenon
  • Serbo-Croatian: фе́дер — carpentry: a projection or tenon
  • Catalan: coca — type of ship
  • Czech: koga — type of ship
  • Dutch: kogge — type of ship
  • Finnish: koggi — type of ship
  • Galician: coca — type of ship
  • German: Kogge — type of ship
  • Russian: когг (kogg) — type of ship
  • Serbo-Croatian: кога (koga) — type of ship
  • Spanish: coca — type of ship
  • Swedish: kogg — type of ship
  • Bulgarian: измама (izmama) — trick or deception
  • Dutch: vals spel — trick or deception
  • Dutch: valsspelen — cheat at dice
  • Dutch: bedriegen — cheat at dice