霊 ghost

I shot him with my RAYgun and he turned into a ghost.

Here come the ghosts of 2 deceased hedgehogs who died in the rainstorm.

ghost ★★★☆☆
幽 (occult) + 霊 (ghost) = 幽霊 (ghost)

a vengeful ghost - unlike 悪霊（あくりょう） and 溶解 （ようかい）, 幽霊 were once human and driven by revenge. 幽霊 are more popular in horror movies (like The Ring), whereas 妖怪 are more traditional.

evil spirit ★☆☆☆☆ FP
悪 (bad) + 霊 (ghost) = 悪霊 (evil spirit)

an evil spirit; a spirit who puts curses on people, or brings misfortune to entire towns, or possesses innocent fools. Unlike 幽霊, they don't attack you directly, and unlike 妖怪 don't have a physical form

inspiration ★☆☆☆☆
霊 (ghost) + 感 (feeling) = 霊感 (inspiration)

inspiration.

To get inspired: 霊感を受ける（うける）

To inspire someone: 霊感を与える（あたえる）