9 Grammatical Pitfalls


[dee-breef] /diˈbrif/
verb (used with object)
to interrogate (a soldier, astronaut, diplomat, etc.) on return from a mission in order to assess the conduct and results of the mission.
to question formally and systematically in order to obtain useful intelligence or information:
Political and economic experts routinely debrief important defectors about conditions in their home country.
to subject to prohibitions against revealing or discussing classified information, as upon separation from a position of military or political sensitivity.
Psychology. (after an experiment) to disclose to the subject the purpose of the experiment and any reasons for deception or manipulation.
Origin of debrief
1940-45; de- + brief
Related forms
debriefer, noun
debriefing, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for debriefing
  • During the fight, there's an aside from each team member taken from a debriefing after the mission.
  • The elevated mood lasted all the way back to camp, until the evening debriefing.
  • Maybe he knew why the engine blew, but only after a debriefing with team engineers.
  • debriefing sessions shall not be recorded in any manner, including in writing.
British Dictionary definitions for debriefing


(of a soldier, astronaut, diplomat, etc) to make or (of his superiors) to elicit a report after a mission or event Compare brief (sense 13)
Derived Forms
debriefing, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for debriefing



"obtain information (from someone) at the end of a mission," 1945, from de- + brief (v.). Related: Debriefed; debriefing.

Online Etymology Dictionary, © 2010 Douglas Harper
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