Open English Wordnet
Nouns
(n)plague, pestilence, pest, pestisa serious (sometimes fatal) infection of rodents caused by Yersinia pestis and accidentally transmitted to humans by the bite of a flea that has bitten an infected animal (n)infestation, plaguea swarm of insects that attack plants“a plague of grasshoppers” (n)plagueany large scale calamity (especially when thought to be sent by God) (n)plaguean annoyance“those children are a damn plague” Verbs
(v)blight, plaguecause to suffer a blight“Too much rain may blight the garden with mold” (v)harass, hassle, harry, chivy, chivvy, chevy, chevvy, beset, plague, molest, provokeannoy continually or chronically“He is known to harry his staff when he is overworked”,
“This man harasses his female co-workers”