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
Philip Wang, Time, 9 Feb. 2026
To address the issue, researchers at Florida Atlantic University have developed a device that repels sharks but not tuna and swordfish.
—Bill Kearney, Sun Sentinel, 6 Feb. 2026
Must orders include cotoletta alla Milanese with sunny saffron risotto and vitello tonnato; thin ruffles of veal topped with tuna sauce and fat caper berries.
—Anna Grace Lee, Vogue, 6 Feb. 2026
Menus lean into New England seasonality (lobster fra diavolo and tuna carpaccio were highlights).
—Cameron Sperance, Travel + Leisure, 6 Feb. 2026
See All Example Sentences for tuna
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Noun
The supplies include rice, beans, pasta, cans of tuna and solar lamps that will be delivered by the Catholic Church and Caritas.
—Philip Wang, Time, 9 Feb. 2026
To address the issue, researchers at Florida Atlantic University have developed a device that repels sharks but not tuna and swordfish.
—Bill Kearney, Sun Sentinel, 6 Feb. 2026
Must orders include cotoletta alla Milanese with sunny saffron risotto and vitello tonnato; thin ruffles of veal topped with tuna sauce and fat caper berries.
—Anna Grace Lee, Vogue, 6 Feb. 2026
Menus lean into New England seasonality (lobster fra diavolo and tuna carpaccio were highlights).
—Cameron Sperance, Travel + Leisure, 6 Feb. 2026
See All Example Sentences for tuna
Cite this Entry
“Tuna.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tuna. Accessed 15 Feb. 2026.
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