criminalise vs illegalize

criminalise and illegalize both are verbs.

Word	Noun	Adjective	Verb	Adverb
criminalise	No	No	Yes	No
illegalize	No	No	Yes	No

As verbs, criminalise and illegalize are synonyms defined as:

Other synonyms of criminalise include criminalize, illegalise, outlaw.

criminalise (verb)	illegalize (verb)
declare illegal; outlaw	declare illegal; outlaw