sarutobi is tsunade's instructor
yes
The singular form would be instructors and the possessive form is instructor's.
Judo Instructor
a female instructor is a instuctoress.
The Instructor was created in 1930.
The Instructor ended in 1970.
Tagalog translation of instructor: tagapagturo
Library Instructor
how do I become a phlebotomy instructor
The word 'instructor' is a common noun. It becomes a proper noun when it is the title of a specific instructor for example, Instructor Jane Brown or a title such as 'Red Cross Lifesaving Instructor Training Course'.
The instructor guided the students through the complicated science experiment.
Juvenile Instructor ended in 1930.