tuna

noun (1)

Save Word

tu·na | \ ˈtü-nə

, ˈtyü-

plural tuna or tunas

Definition of tuna

(Entry 1 of 2)

1 : any of numerous large vigorous scombroid food and sport fishes (such as an albacore or a bluefin tuna)

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

— called also tuna fish

tuna

noun (2)

tu·na | \ ˈtü-nə

Definition of tuna (Entry 2 of 2)

1 : any of various flat-jointed prickly pears (genus Opuntia) especially : one (O. tuna) of tropical America

2 : the edible fruit of a tuna

Buying Guide

Our Reviews team has selected the best can openers.

Learn More About tuna

Dictionary Entries Near tuna

tun

tuna

tunable

Statistics for tuna

Cite this Entry

“Tuna.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tuna. Accessed 28 Jun. 2022.

Style: MLA

MLA

Chicago

APA

Merriam-Webster Check Mark Icon

More Definitions for tuna

tuna

noun

tu·na | \ ˈtü-nə

, ˈtyü- \

plural tuna or tunas

Kids Definition of tuna

: a large sea fish caught for food and sport

WORD OF THE DAY

fulsome

See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

Great Words for Scrabble

Which of the following Q-without-U words means the number five in cards or dice?

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ

A daily challenge for crossword fanatics.

TAKE THE QUIZ

tuna

Definition of tuna

First Known Use of tuna

History and Etymology for tuna

Learn More About tuna

Dictionary Entries Near tuna

Statistics for tuna