Dictionary definition · plague
noun
- a 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
- any epidemic disease with a high death rate
- a swarm of insects that attack plants"a plague of grasshoppers"
- any large scale calamity (especially when thought to be sent by God)
- an annoyance"those children are a damn plague"
verb
- cause to suffer a blight"Too much rain may blight the garden with mold"
- annoy continually or chronically"He is known to harry his staff when he is overworked"
Source: Open English WordNet (CC BY 4.0).