from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Informal A ghost; a specter.
- n. Slang A secret agent; a spy.
- n. Offensive Slang Used as a disparaging term for a Black person.
- transitive v. To haunt.
- transitive v. To startle and cause nervous activity in; frighten: The news spooked investors, and stock prices fell.
- intransitive v. To become frightened and nervous.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A spirit returning to haunt a place.
- n. A ghost or an apparition.
- n. A hobgoblin.
- n. A spy.
- n. A scare or fright.
- n. A black person.
- v. To scare or frighten.
- v. To startle or frighten an animal
from the GNU version of the Collaborative International Dictionary of English
- n. A spirit; a ghost; an apparition; a hobgoblin.
- n. The chimæra.
from The Century Dictionary and Cyclopedia
- n. A ghost; a hobgoblin.
- To play the spook.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. frighten or scare, and often provoke into a violent action
- n. someone unpleasantly strange or eccentric
- n. a mental representation of some haunting experience
Dutch, from Middle Dutch spooc.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Dutch spook ("ghost"), from Middle Dutch spooc ("spook, ghost"); liken German Spuk ("ghost, apparition"), Middle Low German spok ("spook"), Swedish spok (" scarecrow"), Norwegian spjok ("ghost, specter"), Danish spøg ("joke"). Extra-Germanic cognates include Albanian shpik ("to invent, make up, fantasize") and fik ("to extinguish, fade"). (Wiktionary)