tuna

¹ American  

[too-nuh, tyoo-] / ˈtu nə, ˈtyu- /

noun

plural

tuna,

plural

tunas

1. any of several large food and game fishes of the family Scombridae, inhabiting temperate and tropical seas.

2. any of various related fishes.

3. Also called tuna fish.  the flesh of the tuna, used as food.

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tuna ² American  

[too-nuh, tyoo-] / ˈtu nə, ˈtyu- /

noun

1. any of various prickly pears, prickly pears, especially either of two erect, treelike species, Opuntia tuna or O. ficus-indica, of Mexico, bearing a sweet, edible fruit.

2. the fruit of these plants.

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tuna ¹ British  

/ ˈtjuːnə /

noun

1. Also called: tunny.  any of various large marine spiny-finned fishes of the genus Thunnus , esp T. thynnus , chiefly of warm waters: family Scombridae . They have a spindle-shaped body and widely forked tail, and are important food fishes

2. any of various similar and related fishes

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tuna ² British  

/ ˈtjuːnə /

noun

1. any of various tropical American prickly pear cacti, esp Opuntia tuna , that are cultivated for their sweet edible fruits

2. the fruit of any of these cacti

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Etymology

Origin of tuna¹

An Americanism first recorded in 1880–85; from Spanish (California), variant of Spanish atún, from Arabic al “the” + tūn, from Greek thýnnos tunny

Origin of tuna²

First recorded in 1545–55; from Spanish, from Taíno

Example Sentences

Instead, they left him behind with water, cans of tuna and energy bars - and a promise to return soon.

From BBC • Apr. 9, 2026

Last year, I changed the Fourth of July menu because the day before I caught a 180-pound bigeye tuna and that was the dinner.

From The Wall Street Journal • Mar. 30, 2026

The starter is a nod to McIlroy's favourite New York restaurant, Le Bernardin, where the 36-year-old always orders yellowfin tuna carpaccio.

From BBC • Mar. 18, 2026

I also love the hot chocolate, and the tuna melt is a special, more romanticized version of the classic.

From Los Angeles Times • Mar. 13, 2026

Too small and the tuna won’t get tired quick enough.

From "The Young Man and the Sea" by Rodman Philbrick