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[in-struhk-ter] /ɪnˈstrʌk tər/
a person who instructs; teacher.
a teacher in a college or university who ranks below an assistant professor.
Origin of instructor
late Middle English
1425-75; late Middle English < Latin, equivalent to instruc-, variant stem of instruere (see instruct) + -tor -tor
Related forms
[in-struhk-tawr-ee-uh l, -tohr-] /ˌɪn strʌkˈtɔr i əl, -ˈtoʊr-/ (Show IPA),
instructorship, noun
self-instructor, noun
1. tutor, schoolmaster, preceptor, pedagogue. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Examples from the Web for instructor
Contemporary Examples
Historical Examples
  • The coxswain of the gig had been previously cautioned not to allow the instructor to handle the yoke-lines again.

    The Dreadnought of the Air Percy F. Westerman
  • The instructor leaned on the fence and puffed on at his pipe.

    Stanford Stories Charles K. Field
  • In the classroom the instructor is the "coach" of the game and she is the person with whom to talk.

  • If the recruit will not obey, it is the duty of the drill officer to report him to the instructor.

    In School and Out Oliver Optic
  • Then his “cheek” came back and he went on, puffing out far larger volumes than his instructor had done.

    The Walrus Hunters R.M. Ballantyne
British Dictionary definitions for instructor


someone who instructs; teacher
(US & Canadian) a university teacher ranking below assistant professor
Derived Forms
instructorship, noun
instructress (ɪnˈstrʌktrɪs) noun:feminine
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 instructor

mid-15c., from Old French instructeur and directly from Medieval Latin instructor "teacher" (in classical Latin, "preparer"), agent noun from instruere (see instruct).

Online Etymology Dictionary, © 2010 Douglas Harper
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