[ in-struhk-ter ]
/ ɪnˈstrʌk tər /


a person who instructs; teacher.
a teacher in a college or university who ranks below an assistant professor.

Nearby words

  1. instruction,
  2. instructional,
  3. instructions,
  4. instructive,
  5. instructively,
  6. instructress,
  7. instrument,
  8. instrument flying,
  9. instrument landing,
  10. instrument panel

Origin of instructor

1425–75; late Middle English < Latin, equivalent to instruc-, variant stem of instruere (see instruct) + -tor -tor

Related formsin·struc·to·ri·al [in-struhk-tawr-ee-uhl, -tohr-] /ˌɪn strʌkˈtɔr i əl, -ˈtoʊr-/, adjectivein·struc·tor·ship, nounself-in·struc·tor, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for instructor

British Dictionary definitions for instructor


/ (ɪnˈstrʌktə) /


someone who instructs; teacher
US and Canadian a university teacher ranking below assistant professor
Derived Formsinstructorship, nouninstructress (ɪnˈstrʌktrɪs), fem n

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

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