Did you mean: kejian kexin keqin keyin kjin keen kin ken ?
| 氪金 | kè jīn | to make an in-app purchase in a game |
| 可劲 | kě jìn | vigorously / to the utmost / to the best of one's ability |
| 课金 | kè jīn | tax levied on a conquered people by an army / fee for a divination session / variant of 氪金[ke4 jin1], in-app purchase (gaming) |