commencement (commencements plural )
1 n-uncount The commencement of something is its beginning.
FORMAL usu the N of n
All applicants should be at least 16 years of age at the commencement of this course.
2 n-var Commencement is a ceremony at a university, college, or high school at which students formally receive their degrees or diplomas.
(AM) usu N n
in BRIT, use graduation