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
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One Altadena couple found help from a local expert to save their pets of 25 years: five koi fish. German Lopez, New York Times, 21 Jan. 2025 Authorities shared photos of these items alongside a composite sketch of her back tattoos — a koi fish and rose — during efforts to learn her identity. Jessica Schladebeck, New York Daily News, 9 Jan. 2025 Photo : Hillary Campbell The pond is home 30 year-old koi cared for by the same aquarian their entire lives. Mark David, Robb Report, 3 Jan. 2025 Cosmic 'koi fish' swims through starry sea in stunning telescope photo Gateway under construction Tuesday, June 11, 2024: The Artemis Program's future pitstop in lunar orbit, Gateway, is under construction in places all over the world. Space.com Staff, Space.com, 1 Jan. 2025 See all Example Sentences for koi 

Word History

Etymology

Japanese

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.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/koi. Accessed 29 Jan. 2025.

Kids Definition

koi

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

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