someone who instructs; teacher a university teacher ranking below assistant professor
WordReference Random House Learner's Dictionary of American English © 2025
in•struc•tor /ɪnˈstrʌktɚ/USA pronunciation
n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2025- a person who instructs;
teacher. - Educationa teacher in a college or university who ranks below an assistant professor.
in•struc•tor
(in struk′tər),USA pronunciation n.
in•struc•to•ri•al
(in′struk tôr′ē əl, -tōr′-),USA pronunciation adj.
in•struc′tor•ship′, n.
- a person who instructs; teacher.
- Educationa teacher in a college or university who ranks below an assistant professor.
- Latin, equivalent. to instruc-, variant stem of instruere (see instruct) + -tor -tor
- late Middle English 1425–75
- 1.See corresponding entry in Unabridged tutor, schoolmaster, preceptor, pedagogue.
Collins Concise English Dictionary © HarperCollins Publishers::
'instructor' also found in these entries (note: many are not synonyms or translations):
academic rank
- assistant
- assistant professor
- beachboy
- black belt
- capable
- coach
- di
- drillmaster
- inst.
- instr.
- language laboratory
- munshi
- pir
- preceptor
- preceptress
- pro shop
- professor
- reader
- readership
- schoolmaster
- self-instructor
- sensei
- solo
- teacher
- timetable
- tutor
- untenured