contradict vs demonstrate

contradict and demonstrate both are verbs.

Word	Noun	Adjective	Verb	Adverb
contradict	No	No	Yes	No
demonstrate	No	No	Yes	No

As verbs, demonstrate is a hypernym of contradict; that is, demonstrate is a word with a broader meaning than contradict:

contradict: prove negative; show to be false
demonstrate: establish the validity of something, as by an example, explanation or experiment

Other hypernyms of contradict include establish, prove, shew, show.

contradict (verb)	demonstrate (verb)
prove negative; show to be false	establish the validity of something, as by an example, explanation or experiment
deny the truth of	provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes
be resistant to	give an exhibition of to an interested audience
be in contradiction with	march in protest; take part in a demonstration