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
Jessica Kozuka, Travel + Leisure, 12 July 2025
Whether served on lettuce, with crackers, or made into a sandwich, tuna salad is a no-fuss recipe—in a good way.
—Jenna Sims, Southern Living, 12 July 2025
In May, a detainee went into anaphylactic shock and ended up intubated in the hospital, the staffer said, because an officer wasn’t paying attention or was new and gave the detainee, who’s allergic to seafood, a tray that contained tuna.
—Jenny Jarvie, Los Angeles Times, 20 June 2025
Chicha morada kombucha, made from purple corn, is a perfect partner for the Peruvian classic and namesake dish, causa, with its mashed potatoes hit with aji amarillo paste, then topped with cucumber, avocado and tuna tartare.
—Jim Dobson, Forbes.com, 19 June 2025
See All Example Sentences for tuna
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Noun
The wholesale tuna portion of the market moved to Toyosu, but Tsukiji still thrives with shops, restaurants, and the new Uogashi market.
—Jessica Kozuka, Travel + Leisure, 12 July 2025
Whether served on lettuce, with crackers, or made into a sandwich, tuna salad is a no-fuss recipe—in a good way.
—Jenna Sims, Southern Living, 12 July 2025
In May, a detainee went into anaphylactic shock and ended up intubated in the hospital, the staffer said, because an officer wasn’t paying attention or was new and gave the detainee, who’s allergic to seafood, a tray that contained tuna.
—Jenny Jarvie, Los Angeles Times, 20 June 2025
Chicha morada kombucha, made from purple corn, is a perfect partner for the Peruvian classic and namesake dish, causa, with its mashed potatoes hit with aji amarillo paste, then topped with cucumber, avocado and tuna tartare.
—Jim Dobson, Forbes.com, 19 June 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 21 Jul. 2025.
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