noun
instructor
in-STRUK-ter/ɪnˈstrʌktər/
A person who teaches a subject or skill.
The swimming instructor demonstrates an arm movement.

Etymology
The building roots also carried the sense of arranging or preparing, and Latin instructor meant a preparer. Its later meaning, teacher, reflects the underlying verb's additional sense of informing or teaching.
In context
i'm also an instructor for them i've helped develop the absar we call it avalanche search and rescue advanced skills course that we deliver i'm actually delivering one next week in golden uh to a group of people
More examples
- Her driving instructor remained calm.
- Several instructors helped with the workshop.
- Ask the instructor before using the equipment.
Forms
instructor · instructors
instruction noun — teaching or guidance