contradiction vs opposition

contradiction and opposition both are nouns.

Word	Noun	Adjective	Verb	Adverb
contradiction	Yes	No	No	No
opposition	Yes	No	No	No

As nouns, opposition is a hypernym of contradiction; that is, opposition is a word with a broader meaning than contradiction:

Other hypernyms of contradiction include oppositeness.

contradiction (noun)	opposition (noun)
the speech act of contradicting someone	the act of hostile groups opposing each other
(logic) a statement that is necessarily false	the action of opposing something that you disapprove or disagree with
opposition between two conflicting forces or ideas	a body of people united in opposing something
	an armed adversary (especially a member of an opposing military force)
	a contestant that you are matched against
	a direction opposite to another
	the relation between opposed entities