commencement vs commencement exercise

commencement and commencement exercise both are nouns.

Word	Noun	Adjective	Verb	Adverb
commencement	Yes	No	No	No
commencement exercise	Yes	No	No	No

As nouns, commencement and commencement exercise are synonyms defined as:

commencement and commencement exercise: an academic exercise in which diplomas are conferred

Other synonyms of commencement include commencement ceremony, graduation, graduation exercise.

commencement (noun)	commencement exercise (noun)
the act of starting something	an academic exercise in which diplomas are conferred
an academic exercise in which diplomas are conferred
the time at which something is supposed to begin