enrolment vs registration

enrolment and registration both are nouns.

Word	Noun	Adjective	Verb	Adverb
enrolment	Yes	No	No	No
registration	Yes	No	No	No

As nouns, enrolment and registration are synonyms defined as:

Other synonyms of enrolment include enrollment.

enrolment (noun)	registration (noun)
the act of enrolling	the act of enrolling
	the act of adjusting something to match a standard
	(music) the sound property resulting from a combination of organ stops used to perform a particular piece of music; the technique of selecting and adjusting organ stops
	a document certifying an act of registering
	the body of people (such as students) who register or enroll at the same time