鬼， おに， き
1. ogre, demon, oni
2. spirit of a deceased person
3. ogre-like person (i.e. fierce, relentless, merciless, etc.)
4. it (in a game of tag, hide-and-seek, etc.)
5. Chinese "ghost" constellation (one of the 28 mansions)
6. very, extremely, super-
鬼