Definition of koi
: a carp (Cyprinus carpio) bred especially in Japan for large size and a variety of colors and often stocked in ornamental ponds
Recent Examples of koi from the Web
When you're not mesmerized by the view, there's an English garden with gazebos (and hummingbirds), koi pond with fountain and fire pit to keep you occupied outdoors.
Sunlight filtered down from above, dappling bamboo and rain trees, illuminating tropical birds and casting pocket-mirror flashes on mossy koi ponds.
Although the koi need to be recharged every four hours, their inventor – University of Essex roboticist Huosheng Hu – plans subsequent models that'll swim to their chargers.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'koi'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of koi
First Known Use: 1727
Seen and Heard
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