Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Conducted in secret or through the use of subterfuge, as in a police investigation or in spying.
  • adjective Engaged or employed in undercover activity.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Performed or happening in secret.
  • adjective Employed or engaged in spying or secret investigation.
  • noun A person who works undercover.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective conducted with or marked by hidden aims or methods

Etymologies

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Examples

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