In Latin demon meant "evil spirit."

在拉丁语中，demon的意思是“邪恶的灵魂”。

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Crescent or "U" shapes are often said to be the symbol of fertility and also possesses power to ward off evil spirit.

新月或者“U”形往往被认为是丰饶肥沃的象征，并且还具有驱除邪灵的魔力。

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His friends did not want to let Hamlet follow the ghost because they thought it might be an evil spirit and do something bad to him.

他的朋友们不希望哈姆雷特跟着鬼魂走，因为他们认为鬼魂可能是邪恶的并且可能会对他不利。

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Here, King Carnival is the name given to the evil spirit and he goes up in smoke on beautiful Shell Beach.

BBC: A Caribbean carnival of carnivals

The unreliable narrator of the novel, a governess charged with caring for two children who may or may not see the ghosts she sees, invites the reader to flip-flop between thinking her a lone protector against unspeakable evil and a greater threat to the children than any spirit.

WSJ: Andrew Pyper, Author of The Demonologist, on Horror | Word Craft

Presumably they were wary of messing with a solid gold classic, but while "Oz" does present a wide target for critics, they shouldn't have worried: Director Sam Raimi ("The Amazing Spider-Man, " "The Evil Dead") takes care to honor the original in spirit and in style.

CNN: Review: 'Oz the Great and Powerful' is more than good enough