plural trout also trouts
1
: any of various salmonid food and sport fishes that are mostly smaller than the typical salmons and are anadromous or restricted to cool clear fresh water:
a
: any of various Old or New World fishes (genera Salmo, Salvelinus, and Oncorhynchus) compare brown trout, rainbow trout
2
: any of various fishes (such as the largemouth bass) held to resemble the true trouts

Examples of trout 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.
In summer, those same helicopters can whisk you to a remote stream or high mountain lake to fly-fish for trout, or a mountaintop for yoga and meditation. — Condé Nast, Condé Nast Traveler, 10 Sep. 2026 As the state has relied heavily on its water, native fish such as Chinook salmon, steelhead trout and longfin smelt have declined. — Ian James, Los Angeles Times, 9 Sep. 2026 Apache trout range begins just across the ridge along Highway 191 from KP Creek and flows west toward the Black River, state native trout and chub coordinator Alex Loubere said. — Brandon Loomis, AZCentral.com, 8 Sep. 2026 Barnacles, insects, trout, and arachnids carry evidence of ancient duplications in their genomes. — Carrie Arnold contributing, Quanta Magazine, 2 Sep. 2026 See All Example Sentences for trout

Word History

Etymology

Middle English, from Old English trūht, from Late Latin trocta, tructa, a fish with sharp teeth, from Greek trōktēs, literally, gnawer, from trōgein to gnaw — more at troglodyte

First Known Use

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

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

Browse Nearby Words

Cite this Entry

“Trout.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trout. Accessed 25 Sep. 2026.

Kids Definition

plural trout also trouts
1
: any of various edible fishes that are mostly smaller than the related salmons, are restricted to cool clear fresh water or spend time at sea before returning to fresh water to breed, and are often speckled with dark colors
2
: any of various fishes that resemble the true trouts

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