university,
college, seminary, conservatory, graduate school, trade school, vocational
school, institute, faculty, department
group,
set, coterie, ring, brotherhood, sisterhood, bunch (informal)
antonym: individual
academy, boarding school,
comprehensive, elementary school, grade school, grammar school, high school,
infant school, institution, junior high, junior school, kindergarten, middle
school, nursery school, prep school, preschool, primary school, private school,
public school, state school