As nouns the difference between preceptor and instructor
is that preceptor is the headmaster or principal of a school, especially a private school while instructor is one who instructs; a teacher.
preceptor
Alternative forms
* (archaic)
* (qualifier)
* preceptour (obsolete)
Noun
(
en noun)
The headmaster or principal of a school, especially a private school.
A teacher or tutor.
*
Derived terms
*preceptress
*preceptorship
instructor
English
Alternative forms
* instructour (obsolete)
Noun
(
en noun)
One who instructs; a teacher
Synonyms
* instructer (much less common)