khalifah vs Muslim

khalifah and Muslim both are nouns.

Word	Noun	Adjective	Verb	Adverb
khalifah	Yes	No	No	No
Muslim	Yes	Yes	No	No

As nouns, Muslim is a hypernym of khalifah; that is, Muslim is a word with a broader meaning than khalifah:

khalifah: the civil and religious leader of a Muslim state considered to be a representative of Allah on earth
Muslim: a believer in or follower of Islam

Other hypernyms of khalifah include Moslem, ruler, swayer.

khalifah (noun)	Muslim (noun)
the civil and religious leader of a Muslim state considered to be a representative of Allah on earth	a believer in or follower of Islam

khalifah (adjective)	Muslim (adjective)
	of or relating to or supporting Islamism