n 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
n any epidemic disease with a high death rate
n a swarm of insects that attack plants
n any large scale calamity (especially when thought to be sent by God)
n an annoyance
v cause to suffer a blight
v annoy continually or chronically