plural tuna or tunas
1
: any of various large vigorous scombroid fishes (as of the genera Euthynnus, Katsuwonus, and especially Thunnus) that are usually dark above and silvery below and include many that are valued as food or sport fishes see albacore, bigeye tuna, bluefin tuna, dogtooth tuna, little tunny, skipjack tuna, yellowfin tuna
2
: the flesh of a tuna used for food
grilled tuna
specifically,
sometimes tuna fish
: tuna flesh that has been cooked and canned
—often used before another noun
tuna salad
a tuna fish sandwich
1
: any of various flat-jointed prickly pears (genus Opuntia)
especially
: one (O. tuna) of tropical America
2
: the edible fruit of a tuna
Examples of tuna in a Sentence
Recent Examples on the Web
Jillian Kubala, Health, 31 Dec. 2025
Fancier than a tuna salad but no harder to make, tuna rillettes are a perfect party nosh.
—The New York Times News Service Syndicate, San Diego Union-Tribune, 31 Dec. 2025
Start with the charbroiled oysters and tuna tacos, and then continue on to seafood po-boys or a bacon cheeseburger.
—Kristy Christiansen, Southern Living, 31 Dec. 2025
The restaurant was also dinged when inspectors found tuna salad and lima beans kept past their date marks in the walk-in cooler and a food employee with no head covering.
—Evan Moore
december 30, Charlotte Observer, 30 Dec. 2025
See All Example Sentences for tuna
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Noun
Some tuna species, such as bigeye tuna, are especially high in mercury and should be avoided.
—Jillian Kubala, Health, 31 Dec. 2025
Fancier than a tuna salad but no harder to make, tuna rillettes are a perfect party nosh.
—The New York Times News Service Syndicate, San Diego Union-Tribune, 31 Dec. 2025
Start with the charbroiled oysters and tuna tacos, and then continue on to seafood po-boys or a bacon cheeseburger.
—Kristy Christiansen, Southern Living, 31 Dec. 2025
The restaurant was also dinged when inspectors found tuna salad and lima beans kept past their date marks in the walk-in cooler and a food employee with no head covering.
—Evan Moore
december 30, Charlotte Observer, 30 Dec. 2025
See All Example Sentences for tuna
Cite this Entry
“Tuna.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tuna. Accessed 1 Jan. 2026.
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