Meaning of “pest” in the English Dictionary

british dictionary

"pest" in British English

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pestnoun [ C ]

uk /pest/ us /pest/

an insect or small animal that is harmful or damages crops:

common pests such as rats, mice, or cockroaches

informal an annoying person, especially a child:

Put that back, you little pest!

(Definition of “pest” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"pest" in American English

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pestnoun [ C ]

us /pest/

an insect or small animal that is harmful or damages crops:

The aphid is a garden pest.

infml A pest is also an annoying person, esp. a child:

My brother is such a pest.

(Definition of “pest” from the Cambridge Academic Content Dictionary © Cambridge University Press)