1. a delusion (common in paranoia) that others are out to get you and frustrate and embarrass you or inflict suffering on you; a complicated conspiracy is frequently imagined;
WordNet (r) 3.0 (2006):
delusions of persecution
n 1: a delusion (common in paranoia) that others are out to get
you and frustrate and embarrass you or inflict suffering on
you; a complicated conspiracy is frequently imagined