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Synonyms

fine-tooth comb

American  
[fahyn-tooth] / ˈfaɪnˌtuθ /
Also fine-toothed comb

noun

  1. a comb having narrow, closely set teeth.


idioms

  1. go over / through with a fine-tooth comb, to examine in close detail; search thoroughly; fine-comb.

    The police went over the apartment with a fine-tooth comb.

fine-tooth comb British  

noun

  1. a comb with fine teeth set closely together

  2. to examine very thoroughly

"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

fine-tooth comb More Idioms  
  1. A method of searching or investigating in minute detail, as in He examined the figures with a fine-tooth comb but found no errors. The practice of using a comb with close-set teeth to comb out head lice was transferred to various kinds of investigation in the late 1800s.


Etymology

Origin of fine-tooth comb

First recorded in 1830–40

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

While there are similarities between transactions designed to avoid different reporting requirements, investigators will look at them with a fine-tooth comb.

From MarketWatch • Feb. 26, 2026

Any such deal would normally have to be accepted by all countries in a plenary session, where negotiators can go through the text with a fine-tooth comb, often leading to major arguments.

From BBC • Nov. 30, 2023

“Keffe, today what we’re going to do, we’re just going to go over with a fine-tooth comb the Las Vegas incident,” Kading said at the time, according to transcripts.

From Los Angeles Times • Oct. 19, 2023

Lawyers in Idaho Attorney General Lawrence Wasden’s office are going through all the state’s abortion statutes with a fine-tooth comb, said Wasden spokesman Scott Graf.

From Seattle Times • Jul. 1, 2022

She rana fine-tooth comb through my hair, which she had already unbraided and washed.

From "When I Was the Greatest" by Jason Reynolds

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