1
: any of various silvery fishes (such as a tarpon or silverside)
2
: any of various small wingless insects (order Thysanura)
especially : one (Lepisma saccharinum) found in houses and sometimes injurious especially to sized papers or starched clothes

Examples of silverfish 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.
The good news is no—silverfish are not at all dangerous to humans. Ashley Chalmers, The Spruce, 17 June 2026 Moths, silverfish, and carpet beetles thrive in dark, undisturbed places. Nafeesah Allen, Better Homes & Gardens, 9 May 2026 They are sold as small balls, cakes, or flakes used to control clothes moths, silverfish, and other pests that feed on wool and other natural fibers. Karen Brewer Grossman, Southern Living, 1 July 2026 Elsewhere, bones were stored in plastic and paper bags and totes and boxes, often covered with black mold and silverfish, according to the book. Domenica Bongiovanni, IndyStar, 5 Nov. 2025 See All Example Sentences for silverfish

Word History

First Known Use

1703, in the meaning defined at sense 1

Time Traveler
The first known use of silverfish was in 1703

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Cite this Entry

“Silverfish.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/silverfish. Accessed 8 Jul. 2026.

Kids Definition

silverfish

noun
: any of various small wingless insects
especially : one that is found in houses and feeds on paper products, clothing, and other starchy materials

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