plural moths ˈmȯt͟hz How to pronounce moth (audio) ˈmȯths How to pronounce moth (audio)
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: any of various usually nocturnal lepidopteran insects with antennae that are often feathery, with a stouter body, duller coloring, and proportionately smaller wings than the butterflies, and with larvae that are plant-eating caterpillars
mothlike adjective
mothy adjective

Examples of moth in a Sentence

Recent Examples on the Web
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The moths get confused by urban lights and often end up finding their way into Colorado homes, Hershcovich said, adding that miller moths use light from celestial objects like stars and the moon to orient themselves. Lauren Penington, Denver Post, 5 June 2025 Hydrangea leaf-tiers are small moths that are active now and whose larvae sew leaves at the end of stems together with a silk thread. Tim Johnson, Chicago Tribune, 25 May 2025 So moths symbolize death, and Ellie’s preoccupied with finding her life’s purpose. EW.com, 19 May 2025 Joel pesters the psychologist Gail at lunch, asking if moths are a symbol of change and growth. Noel Murray, New York Times, 19 May 2025 See All Example Sentences for moth

Word History

Etymology

Middle English mothe, from Old English moththe; akin to Middle High German motte moth

First Known Use

before the 12th century, in the meaning defined at sense 1

Time Traveler
The first known use of moth was before the 12th century

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Cite this Entry

“Moth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/moth. Accessed 10 Jun. 2025.

Kids Definition

moth

noun
plural moths ˈmȯt͟hz How to pronounce moth (audio) ˈmȯths How to pronounce moth (audio)
: any of a group of night-flying insects that are lepidopterans often with duller coloring, stouter bodies, and smaller wings than the related butterflies and with antennae which are often feathery

More from Merriam-Webster on moth

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