cast out vs ban

cast out is not a noun while ban is a noun.

Word	Noun	Adjective	Verb	Adverb
cast out	No	No	Yes	No
ban	Yes	No	Yes	No

As verbs, cast out and ban are synonyms defined as:

Other synonyms of cast out include banish, blackball, ostracise, ostracize, shun.

cast out (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.

cast out (verb)	ban (verb)
throw or cast away	prohibit especially by legal means or social pressure
expel from a community or group	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