精霊 (hiragana せいれい, romaji seirei)
- a ghost
- a departed soul
- a dead spirit, (a) spirit(s) of the dead
See also 
- 幽霊 (ゆうれい, yūrei) "ghost," "phantom," "bogey man," "spectre," an "apparition," the soul of someone who cannot move on
- 怨霊, "a vengeful, unquiet ghost"