Definition of こい
- (n) intention; purpose; bad faith
それは偶然だったのか、それとも故意にであったのか。
Was it by accident or by design? - mens rea (guilty mind)
- (n) common carp; koi carp (Cyprinus carpio)
鯉がおたまじゃくしを食べるって知ってた?
Did you know that carp eat tadpoles?
- (adj-i) deep (colour); dark
そのピアノは美しい、濃い褐色の木で作られていました。
The piano was made of beautiful, dark brown wood. - strong (flavour, smell, etc.)
コーヒーはどんなふうにしましょうか。濃いブラックがいいですか。
How do you like your coffee? Strong and black? - thick (consistency); dense
血は水よりも濃し。
Blood is thicker than water. - strong (possibility, etc.)
- thick (i.e. "as thick as thieves"); close; deep (love, etc.)