Bluefin is a type of TUNA that is highly sought after for its flavor and texture. It is the largest species of TUNA and can grow up to 8 feet in length and weigh up to 1, 500 pounds. Bluefin TUNA is found in the Atlantic, Pacific, and Indian Oceans and is often used in sushi and sashimi dishes. The term 'bluefin' can refer to the species as a whole, or it can be used to describe the individual fish. The crossword solutions for the term bluefin include TUNA (4 letters), TUNAS (5 letters), and ALBACORE (8 letters). ALBACORE is a type of TUNA that is smaller than bluefin and is usually canned or sold as steaks.