Graduation is the action of receiving or conferring an academic degree or the associated ceremony. The date of event is often called degree day. The event itself is also called commencement, convocation or invocation. At the University of Cambridge, it is known as general admission. In the United States and Canada, it is also used to refer to the advancement from a primary or secondary school level. Beginning at the secondary school level in the United States, such ceremonies usually include a procession of the faculty and candidates. The candidates will almost always wear academic dress, and increasingly faculty will do the same. At the college and university level, the faculty will usually wear academic dress at the formal ceremonies, as will the trustees and degree candidates. "Graduation" at the college and university level occurs when the presiding officer confers degrees upon candidates, either individually or en masse, even if graduates physically receive their diploma later at a smaller college or departmental ceremony.