Most commonly this person is called a "proctor."
Proctor
Students
Tejano
an exibitionist
Possessed...?
A wrong number is a number misdialled by a person during a telephone call - or a telephone call from an unfamiliar caller.
A group of students is called a class.
religious studies students
Class
Proctor or Invigilator is the name of the person who watches students in an examination.
it's not really mean younger people but in japan, call older people senpai and call younger people kouhai.
The place where students and staff eat in a school is commonly called a cafeteria. It typically serves meals and snacks to students and staff during designated meal times. Some schools may also refer to it as a dining hall or lunchroom.