plural koi
: a carp (Cyprinus carpio) bred especially in Japan for large size and a variety of colors and often stocked in ornamental ponds

Examples of koi in a Sentence

Recent Examples on the Web The sanctuary-like grounds feature multi-level koi ponds amid beautiful landscaping designed by renowned Japanese landscape architect and designer Kimio Kimura. Emma Reynolds, Robb Report, 24 Aug. 2023 Take part in a family-friendly educational event for those new to the hobby and those thinking about becoming koi and pond owners. Corey Sheldon | , oregonlive, 23 Aug. 2023 My koi are fed with high-quality food, mostly from Japan. oregonlive, 9 July 2023 Stock some koi, goldfish and even red-eared slider turtles in it. Jill Gleeson, Country Living, 2 June 2023 He’s reportedly never seen a koi in this particular pond before. Michael Hollan, Fox News, 2 May 2021 The eaglets’ parents are bringing them plenty of food — usually shad, koi or catfish; and sometimes the occasional squirrel or groundhog — Greeley said. Dana Hedgpeth, Washington Post, 5 Apr. 2023 Meet the man who breeds world-class koi fish. Alexandra Meeks, CNN, 27 Jan. 2022 Inside the dining room, at least 200 pastel koi fish sculptures suspend from the ceiling amid an open kitchen, oak-colored walls, teak tables and an assortment of ginger plants and succulents. Phillip Valys,, 30 Mar. 2021

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'koi.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History



First Known Use

1727, in the meaning defined above

Time Traveler
The first known use of koi was in 1727

Dictionary Entries Near koi

Cite this Entry

“Koi.” Dictionary, Merriam-Webster, Accessed 25 Apr. 2024.

Kids Definition


: a carp that has been bred to be of various bright colors and is often stocked in ornamental ponds

More from Merriam-Webster on koi

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