Definition of “spook” - English Dictionary

“spook” in American English

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spookverb [ T ]

us /spuk/

spook verb [ T ] (FRIGHTEN)

to frighten a person or animal:

That car wreck spooked me badly.
spooky
adjective us /ˈspu·ki/

infml

I think it’s very spooky sleeping in a dark and creaky house.

spooknoun [ C ]

us /spuk/

spook noun [ C ] (SPIRIT)

infml ghost

spook noun [ C ] (PERSON)

slang spy

(Definition of “spook” from the Cambridge Academic Content Dictionary © Cambridge University Press)