illegalise vs ban

illegalise is not a noun while ban is a noun.

Word	Noun	Adjective	Verb	Adverb
illegalise	No	No	Yes	No
ban	Yes	No	Yes	No

As verbs, ban is a hyponym of illegalise; that is, ban is a word with a more specific, narrower meaning than illegalise:

Other hyponyms of illegalise include censor.

illegalise (noun)	ban (noun)
	a decree that prohibits something
	an official prohibition or edict against something
	100 bani equal 1 leu in Romania
	100 bani equal 1 leu in Moldova
	a logarithmic unit which measures information or entropy, based on base 10 logarithms and powers of 10.

illegalise (verb)	ban (verb)
declare illegal; outlaw	prohibit especially by legal means or social pressure
	forbid the public distribution of (a movie or a newspaper)
	expel from a community or group
	ban from a place of residence, as for punishment