from The American Heritage® Dictionary of the English Language, 4th Edition

  • transitive v. To question to obtain knowledge or intelligence gathered especially on a military mission.
  • transitive v. To instruct (a government agent, for example) not to reveal classified or secret information after employment has ceased.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • v. To question someone after a military mission in order to obtain intelligence.
  • v. To question someone, or a group of people, after the implementation of a project in order to learn from mistakes etc.
  • v. To inform subjects of an experiment about what has happened in a complete and accurate manner.

from the GNU version of the Collaborative International Dictionary of English

  • v. to interrogate (a person) who has recently experienced an event, to obtain information about that experience; -- used especially of military pilots or diplomatic agents who have just returned from a mission.

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

  • v. put someone through a debriefing and make him report


from Wiktionary, Creative Commons Attribution/Share-Alike License

de- +‎ brief.



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