Definition of: mischief

(mis′chif) noun
1. Any occurrence attended with evil or injury; troublesome or damaging action or its result; damage; vexation.
2. Any annoying or vexatious action or course of conduct; a prank; also, the spirit or mood leading to such acts.
3. A prankish person. See synonyms under INJURY. [<OF meschef bad result <meschever come to grief <mes- mis- (<L minus less) + chief head, end <L caput head]