Definition of pest in English:


Syllabification: pest
Pronunciation: /pest


1A destructive insect or other animal that attacks crops, food, livestock, etc.
More example sentences
  • The biological control of insect pests by using spiders as predators is being studied in four districts of Kerala.
  • The single most destructive insect pest for Eastern growers - the infamous plum curculio - is unknown in the West.
  • Synthetic pesticides sprayed on crops to check insect pests also kill non-target insects.
1.1 informal An annoying person or thing; a nuisance.
More example sentences
  • He still looked at her as the annoying pest with pigtails.
  • He didn't want her to think of him as an annoying pest.
  • Now the camel and its driver had lost it economic value and became a nuisance and a pest.
nuisance, annoyance, irritation, irritant, thorn in one's flesh/side, vexation, trial, the bane of one's life, menace, trouble, problem, worry, bother
informal pain (in the neck), aggravation, headache, nudnik
1.2 (the pest) archaic Bubonic plague.
More example sentences
  • Moreover, the virulence of the pest was the greater by reason the intercourse was apt to convey it from the sick to the whole, just as fire devours things dry or greasy when they are brought close to it.


late 15th century (denoting the bubonic plague): from French peste or Latin pestis 'plague'.

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