plural moths ˈmȯt͟hz How to pronounce moth (audio) ˈmȯths How to pronounce moth (audio)
1
2
: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
An 18-track remix album followed a few moths later, and a documentary chronicling the album’s creation is currently slated for a worldwide theatrical release in early 2026. Kyle Denis, Billboard, 27 Oct. 2025 Phalaenopsis, or moth orchids, fall into this category, as do vanda orchids. Leanne Potts, Better Homes & Gardens, 23 Oct. 2025 Black Heart Books, Manitowoc, Wisconsin Black furniture, inky walls, spiders, and moths accent the book collection at Black Heart Books. Jennifer Billock, AFAR Media, 22 Oct. 2025 The Bolas spider creates a silk lasso to catch fluttering moths. Kate Siber, Outside, 21 Oct. 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

Browse Nearby Words

Cite this Entry

“Moth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/moth. Accessed 29 Oct. 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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!