What does 鬼 mean?
鬼 is a Japanese noun meaning “ogre, demon, 'it' (e.g.,in a game of tag)” in English. It can also be translated as “spirit of a deceased person, ogre-like person (i.e. fierce, relentless, merciless, etc.), it (in a game of tag, hide-and-seek, etc.)” depending on context. It is written as 鬼 in kanji, おに in hiragana, and oni in romaji. This word is part of JLPT N3 vocabulary.