elision vs exclusion

elision and exclusion both are nouns.

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

As nouns, elision and exclusion are synonyms defined as:

Other synonyms of elision include exception.

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