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Thriller (noun) Something that thrills. 
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Thriller (noun) A suspenseful, sensational genre of story, book, play or film. 
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Horror (noun) An intense distressing emotion of fear or repugnance. 
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Horror (noun) An intense dislike or aversion; an abhorrence. 
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Horror (noun) A genre of fiction meant to evoke a feeling of fear and suspense. 
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Horror (noun) Something horrible; that which excites horror. “I saw many horrors during the war.” 
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Horror (noun) A nasty or ill-behaved person; a rascal or terror. “The neighbour’s kids are a pack of little horrors!” 
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Horror (noun) An intense anxiety or a nervous depression; often the horrors. 
Wiktionary
 
					