instructor
UK: ɪnˈstrʌktə | US: ɪnˈstrʌktər
n. a person who teaches or trains others, especially in a specific skill or subject
n. (computing) a component or program that provides guidance or commands
The word "instructor" derives from Latin instructus, the past participle of instruere ("to build, arrange, teach"), combining in- (into) + struere (to pile, arrange). The suffix -or denotes an agent, forming a noun meaning "one who teaches or directs." Over time, the term evolved from its literal Latin sense of "arranger" to its modern meaning of a teacher or trainer, reflecting the role of organizing knowledge for learners.
The yoga instructor demonstrated the correct posture for the class.
He works as a driving instructor on weekends.
The software includes an interactive instructor to guide new users.
The military instructor emphasized discipline during training.
She hired a private instructor to improve her piano skills.