surveillant

noun
sur·veil·lant | \sər-ˈvā-lənt also -ˈvāl-yənt or -ˈvā-ənt \

Definition of surveillant 

: one that exercises surveillance

First Known Use of surveillant

1819, in the meaning defined above

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Dictionary Entries near surveillant

surv

surveil

surveillance

surveillant

survey

surveyable

survey agent

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The first known use of surveillant was in 1819

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