ghost, devil

Radicals

• 鬼【おに】
  ogre, demon, oni, spirit of a deceased person, ogre-like person (i.e. fierce, relentless, merciless, etc.), it (in a game of tag, hide-and-seek, etc.), Chinese "ghost" constellation (one of the 28 mansions), very, extremely, super-
• 吸血鬼【きゅうけつき】
  vampire, bloodsucker
• 疑心暗鬼【ぎしんあんき】
  suspicion will raise bogies, once you suspect something, everything else will look suspicious, jumping at shadows
• 鬼才【きさい】
  wizard, genius, remarkable talent, exceptional ability
• 鬼気【きき】
  ghastly, dreadful
• 鬼門【きもん】
  the northeastern (unlucky) direction, person or thing to be avoided, the demon's gate, weak point, Achilles' heel
• 鬼子母神【きしもじん】
  Hariti (goddess of childbirth and children)
• 殺人鬼【さつじんき】
  bloodthirsty killer, cold-blooded murderer, homicidal maniac