Meaning : The successful completion of a program of study.
Meaning : An academic exercise in which diplomas are conferred.
Synonyms : commencement, commencement ceremony, commencement exercise, graduation exercise
Meaning : A line (as on a vessel or ruler) that marks a measurement.
Example :
The ruler had 16 graduations per inch.
Meaning : The act of arranging in grades.
Synonyms : gradation