halibut

noun

hal·​i·​but ˈha-lə-bət 

 also  ˈhä-

plural halibut also halibuts

: any of several marine flatfishes (especially Hippoglossus hippoglossus of the Atlantic and H. stenolepis of the Pacific) that are widely used for food and include some of the largest bony fishes

Did you know?

Among the different kinds of fish found in the world’s oceans is a group called the flatfish. Flatfish are well named, for they have flattened bodies with both eyes on the upper side of the head. In Middle English the word for flatfish was butte. During the Middle Ages, fish was often eaten on holy days in place of meat. The most popular fish for the holy days was the largest variety of flatfish, or “butte.” Thus, this particular fish came to be called in Middle English halybutte, meaning literally “holy flatfish,” from haly, a form of holy, and butte. In modern English the spelling has been changed to halibut.

Examples of halibut in a Sentence

Recent Examples on the Web

Jackson and his family plan to send details of the catch to the International Game Fish Association with the hopes of attaining world records in both the junior record for Atlantic halibut category as well as line class for all fish. —Toria Sheffield, PEOPLE, 7 Sep. 2025

The paperwork is being filled out now to certify the halibut as a world-record in the International Game Fish’s youth category (age 16 and under). —Bob McNally, Outdoor Life, 4 Sep. 2025

The halibut swims in a magenta consommé of dashi and beetroot. —Helen Rosner, New Yorker, 31 Aug. 2025

Among the items detailed were a menu featuring green salad, filet mignon, halibut, mashed potatoes, asparagus, and crème brûlée. —Billal Rahman, MSNBC Newsweek, 17 Aug. 2025

Word History

Etymology

Middle English halybutte, from haly, holy holy + butte flatfish, from Middle Dutch or Middle Low German but; from its being eaten on holy days

First Known Use

14th century, in the meaning defined above

Kids Definition

halibut

noun

hal·​i·​but ˈhal-ə-bət 

ˈhäl-

plural halibut also halibuts

: either of two marine food fishes of the Atlantic or Pacific oceans that are the largest flatfishes reaching several hundred pounds

Etymology

Middle English halybutte, literally, "holy flatfish," from haly "holy" and butte "flatfish"; so called from the fact it was regularly eaten on holy days

Word Origin

Among the different kinds of fish found in the world's oceans is a group called the flatfish. Flatfish are well named, for they have flattened bodies with both eyes on the upper side of the head. In Middle English the word for flatfish was butte. Many of the flatfish are good to eat, and the largest of the flatfish got its name because it was popular as food. During the Middle Ages fish was often eaten on holy days in place of meat. The most popular fish for the holy days was the largest variety of flatfish, or "butte." Thus, this particular fish came to be called in Middle English halybutte, meaning literally "holy flatfish," from haly, a form of holy, and butte. In Modern English the spelling has been changed to halibut.