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Synonyms

gnat

American  
[nat] / næt /

noun

  1. any of certain small flies, especially the biting gnats or punkies of the family Ceratopogonidae, the midges of the family Chironomidae, and the black flies of the family Simuliidae.

  2. British. mosquito.


idioms

  1. strain at a gnat and swallow a camel, to fuss about trifles while ignoring more serious matters.

gnat British  
/ næt /

noun

  1. any of various small fragile biting dipterous insects of the suborder Nematocera, esp Culex pipiens ( common gnat ), which abounds near stagnant water

"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

Other Word Forms

  • gnatlike adjective

Etymology

Origin of gnat

before 900; Middle English; Old English gnæt ( t ); cognate with German (dial.) Gnatze

Explanation

Those tiny black insects swarming around your head just as the sun goes down are probably gnats, very small flies that are extremely annoying but usually don't bite. If those little flying creatures bite you, they're most likely mosquitoes. If they just irritate you, landing on your face and creating a cloud around your head? They're gnats. Although the word comes from a Germanic root related to gnaw and meaning "biting insect," the truth is most gnats just want to fly around, eat plants, and mate. Occasionally they're attracted to the fluids in your eyes, which means you'll have to swat them away.

Keep Reading on Vocabulary.com

Vocabulary lists containing gnat

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.

The novel opens by describing a local gnat infestation that seems to have spread to the writing, because all the words containing “nat” have been given a silent “g,” as in “extermignate” and “gnaturally.”

From The Wall Street Journal • Jan. 7, 2026

Harvard-Westlake opened a 19-point lead in the second quarter, but Mack became like a troublesome gnat in the third quarter, drawing fouls and scoring 12 points to lead a comeback.

From Los Angeles Times • Dec. 7, 2023

“That was one of the most impressive plays I’ve ever seen a player make,” Saban said, comparing it to a cow flicking off a gnat.

From Seattle Times • Oct. 14, 2023

Trolls have the attention span of a gnat.

From Washington Post • Jul. 7, 2022

Narcissus frowned, as though he was vaguely aware of a gnat buzzing around his head.

From "The Mark of Athena" by Rick Riordan