exclusion vs elision

exclusion and elision both are nouns.

Word	Noun	Adjective	Verb	Adverb
exclusion	Yes	No	No	No
elision	Yes	No	No	No

As nouns, exclusion and elision are synonyms defined as:

Other synonyms of exclusion include exception.

exclusion (noun)	elision (noun)
the act of forcing out someone or something	a deliberate act of omission
a deliberate act of omission	omission of a sound between two words (usually a vowel and the end of one word or the beginning of the next)
the state of being excluded
the state of being excommunicated