maharaja vs prince

maharaja and prince both are nouns.

Word	Noun	Adjective	Verb	Adverb
maharaja	Yes	No	No	No
prince	Yes	No	No	No

As nouns, prince is a hypernym of maharaja; that is, prince is a word with a broader meaning than maharaja:

maharaja: a great raja; a Hindu prince or king in India ranking above a raja
prince: a male member of a royal family other than the sovereign (especially the son of a sovereign)

maharaja (noun)	prince (noun)
a great raja; a Hindu prince or king in India ranking above a raja	a male member of a royal family other than the sovereign (especially the son of a sovereign)