: a very large tuna (Thunnus thynnus) that is an important food and game fish

called also bluefin

Examples of bluefin tuna in a Sentence

Recent Examples on the Web
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No one caught a bluefin tuna weighing 1,000 pounds until 1970. — Bob Rocchetta As Told To Al Ristori, Outdoor Life, 28 Oct. 2026 Tuna are champion swimmers; Pacific bluefin tuna can migrate 5,000 miles (8,000 kilometers) across the northern Pacific in a matter of months. — Torben Rick, The Conversation, 12 Oct. 2026 Diners can also choose from six different ceviche options, including bluefin tuna, wild Mexican shrimp and halibut. — Sacbee.com, 24 Sep. 2026 In Agosto’s 45-seat space, diners can enjoy Mendes’s Portuguese fare rooted in New England with dishes like corn chawanmushi with pickled Bangs Island mussels or bluefin tuna with strawberry, tomato, and crispy kombu. — Kate Kassin, Bon Appetit Magazine, 23 Sep. 2026 See All Example Sentences for bluefin tuna

Word History

First Known Use

1909, in the meaning defined above

Time Traveler
The first known use of bluefin tuna was in 1909

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Cite this Entry

“Bluefin tuna.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bluefin%20tuna. Accessed 30 Oct. 2026.

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