to subdue; to check; to bring under control; (in former times) what one is allowed to wear depending on social status; uniform (army, party, school etc); livery (for company employees)[cedict]
on; on top; upon; first (of two parts); previous or last (week etc); upper; higher; above; previous; to climb; to go into; above; to go up; to attend (class or university); third tone of putonghua[cedict]