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.
The nonnative trout prey on native Kokanee salmon, which Fish and Game stocks at Payette Lake. Nicole Blanchard, Idaho Statesman, 26 Aug. 2026 Seventy-five percent of the chinook and steelhead habitat and 68 percent of the bull trout habitat in the state of Idaho come from areas without roads. Natalie Krebs, Outdoor Life, 26 Aug. 2026 Most of these fish were nonnative trout species which were stocked into historically fishless waters. Logan Smith, CBS News, 24 Aug. 2026 Fly-fishers will find an extensive stretch of Gold Medal Water (a designation for quality and trout density) in Colorado, with access to browns, brookies, cutthroats, and rainbow trout. Evie Carrick, Travel + Leisure, 20 Aug. 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 2 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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