9 Grammatical Pitfalls


[koh-pahy-luh t] /ˈkoʊˌpaɪ lət/
a pilot who is second in command of an aircraft.
Also called first officer.
Origin of copilot
1925-30; co- + pilot Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for copilot
  • The certificated commercial pilot was seriously injured, and the commercial-rated copilot was fatally injured.
  • Pay for flight engineers can be low, but earnings increase significantly as workers advance to copilot and pilot positions.
  • Designate a copilot that can help you use other electronics in the car such as your navigation system or the radio.
  • Federal denied coverage because the copilot had not undergone the training mandated by the policy's pilot warranty.
  • The copilot suffered a minor back injury the three other crew members were not injured.
British Dictionary definitions for copilot


a second or relief pilot of an aircraft
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 copilot

1927, from co- + pilot (n.).

Online Etymology Dictionary, © 2010 Douglas Harper
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Slang definitions & phrases for copilot



An amphetamine taken in order to stay awake (1960s+ Truckers)

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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