first officer

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British Dictionary definitions for first officer

first officer

noun
  1. another name for first mate
  2. the member of an aircraft crew who is second in command to the captain
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