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pesewa
Peshawar
Peshitta
pesky
peso
pessary
pessimism
pessimist
pest
pester
pesthouse
pesticide
pestiferous
pestilence
pestilent
pestle
pesto
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pest

pest [ pest ] (plural pests)


noun 
Definition:
 
1. damaging organism: an organism that is damaging to livestock, crops, humans, or land fertility

2. annoying person or thing: somebody or something that is a nuisance ( informal )

3. outbreak of disease: an epidemic of infectious or contagious disease ( archaic )

[Mid-16th century. Via French, "pestilence" < Latin pestis]
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