tuna

1 of 2

noun (1)

tu·​na ˈtü-nə 

ˈtyü-

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

tuna

2 of 2

noun (2)

tu·​na ˈtü-nə 

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

Noun

Niel is also a fan of turning his tuna sandwich into a BLT by adding crispy bacon and serving it on buttery Texas toast. —Lizzy Briskin, Better Homes & Gardens, 15 Apr. 2026

Come sunset, locals descend upon HB’s, the chic waterside restaurant where my family and I feasted on stone crabs and tuna steak tagliata, and the adjacent Sunset Bar, with its craft cocktails and Adirondack chairs in the sugar-soft sand. —Travel + Leisure Editors, Travel + Leisure, 15 Apr. 2026

There’s a variety of classic sushi rolls like Philadelphia rolls or specialties like the Jayhawk roll (cream cheese, avocado, shrimp tempura and spicy tuna) as well as sashimi (individual pieces of fish served with ginger, soy sauce and wasabi). —Jenna Thompson april 15, Kansas City Star, 15 Apr. 2026

The tuna salad is mixed with kimchi and soy sauce, pantry ingredients that add bright heat and umami. —The Bon Appétit, Bon Appetit Magazine, 13 Apr. 2026

Word History

Etymology

Noun (1)

American Spanish, alteration of Spanish atún, modification of Arabic tūn, from Latin thunnus, from Greek thynnos

Noun (2)

Spanish, from Taino

First Known Use

Noun (1)

1881, in the meaning defined at sense 1

Noun (2)

circa 1555, in the meaning defined at sense 1

Phrases Containing tuna

• albacore tuna
• bigeye tuna
• bluefin tuna
• dogtooth tuna
• little tuna
• skipjack tuna
• tuna mayonnaise
• yellowfin tuna

Rhymes for tuna

• kuna
• luna
• calluna
• lacuna
• laguna
• tribuna
• varuna
• vicuna

Kids Definition

tuna

noun

tu·​na

ˈt(y)ü-nə

plural tuna or tunas

1

: any of several mostly large sea fishes (as an albacore or bonito) related to the mackerels and caught for food and sport

2

: the flesh of a tuna especially when canned for use as food

called also tuna fish