prowler

[ prou-ler ]
/ ˈpraʊ lər /

noun

a person or animal that prowls.
a person who goes stealthily about with some unlawful intention, as to commit a burglary or theft.

Origin of prowler

First recorded in 1510–20; prowl + -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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