Cog

Pronunciation: /kɑɡ/

Definitions of cog

noun A toothed wheel or bar, used to transmit motion or to engage with another toothed part.

Example Sentences

A1 The cog in the machine helps everything run smoothly.

A2 She couldn't figure out how to fix the broken cog in the clock.

B1 The engineer replaced the worn-out cog to improve the efficiency of the engine.

B2 The intricate design of the watch included tiny cogs that worked together to keep time accurately.

C1 The expert technician carefully inspected each cog to ensure optimal performance of the machinery.

C2 The precision engineering of the Swiss watch included cogs made from high-quality materials.

Examples of cog in a Sentence

formal The engineer carefully examined each cog in the machine to ensure smooth operation.

informal Hey, can you help me fix this cog in the gear system?

slang I heard he's a real cog in the corporate machine, always playing politics.

figurative Each cog in the team plays a vital role in achieving our goals.

Grammatical Forms of cog

• past tense: cogged
• plural: cogs
• comparative: more cog
• superlative: most cog
• present tense: cogs
• future tense: will cog
• perfect tense: have cogged
• continuous tense: is cogging
• singular: cog
• positive degree: cog
• infinitive: to cog
• gerund: cogging
• participle: cogged

Origin and Evolution of cog

First Known Use: 1250 year

Language of Origin: Old Norse

Story behind the word: The word 'cog' originated from Middle English 'cogge' or 'cog', which came from Old Norse 'kǫggr' meaning a type of ship's boat.

Evolution of the word: Over time, the word 'cog' evolved to refer to a tooth on a gear or a wheel, representing a mechanical component, and also to describe a deceptive or evasive trick or scheme.