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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Here, younger children might like to feed the koi or make new friends at the pool, while teens can go sea kayaking, learn to hula, or make leis. Kara Williams, USA Today, 25 Apr. 2026 One of the festival’s long-standing traditions is to honor a community member with the privilege of starting the festival by raising the koi, which symbolizes strength, perseverance and good fortune. Sal Pizarro, Mercury News, 25 Apr. 2026 While Toyosu is a bit out of the way, Planets is the larger and more immersive of the two, with engaging exhibits that include a room full of digital koi in knee-deep water, a forest of dangling orchids, and rooms of video game-like physical challenges to jump, balance, or wiggle through. Jessica Kozuka, Travel + Leisure, 13 Mar. 2026 Japanese Friendship Garden of Phoenix A tranquil slice of heaven with grey stones, glittering koi and green bonsai trees. Trenesha Striggles, AZCentral.com, 18 Feb. 2026 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

Browse Nearby Words

Cite this Entry

“Koi.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/koi. Accessed 2 May. 2026.

Kids Definition

koi

noun
: 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

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster