side effect vs result

side effect and result both are nouns.

Word	Noun	Adjective	Verb	Adverb
side effect	Yes	No	No	No
result	Yes	No	Yes	No

As nouns, result is a hypernym of side effect; that is, result is a word with a broader meaning than side effect:

Other hypernyms of side effect include consequence, effect, event, issue, outcome, upshot.

side effect (noun)	result (noun)
any adverse and unwanted secondary effect	a statement that solves a problem or explains how to solve the problem
a secondary and usually adverse effect of a drug or therapy	the semantic role of the noun phrase whose referent exists only by virtue of the activity denoted by the verb in the clause
	something that results
	a phenomenon that follows and is caused by some previous phenomenon

side effect (verb)	result (verb)
	come about or follow as a consequence
	issue or terminate (in a specified way, state, etc.); end
	produce as a result or residue