instructor-n; 2 Senses

Sense Number 1: a person who teaches something to others

Commentary: INSTRUCTOR[+entity][+person][+teacher][-academic][+professional]

Bob's flight instructor thinks Bob is ready to solo.
Sally hired a private sailing instructor for the summer.
The instructors at the technology seminar received good evaluations from the attendees.

WordNet 3.0 Sense Numbers: 1

Sense Number 2: a college teacher ranked below assistant professor

Commentary: INSTRUCTOR[+entity][+person][+teacher][+academic][+college][+ranked]

John has a two-year position as an instructor at a local college.
She got promoted to a tenure-track position after serving as an instructor in the history department.

WordNet 0.0 Sense Numbers: 1b