koi
noun/kɔɪ/
/kɔɪ/
(also koi carp
/ˌkɔɪ ˈkɑːp/
/ˌkɔɪ ˈkɑːrp/
)(plural koi or koi carp)
- a large fish originally from Japan, often kept in fish ponds
锦鲤（观赏鱼，源自日本） Word Originearly 18th cent.: from Japanese, ‘carp’.