| 乞 | kou koi | beg; request |
| 恋 | koi koishii kou | love; long for, yearn for; love |
| 請 | kou ukeru koi | ask, request; invite; please |
| 濃 | koi komayaka | thick, strong, concentrated |
| 鯉 | koi | carp |
| 戀 | koi koishii | love; long for, yearn for; love |
| 鱣 | koi | sturgeon |
| 釅 | su sake koi | thick, strong (beverage) |