friar preacher vs mendicant

friar preacher and mendicant both are nouns.

Word	Noun	Adjective	Verb	Adverb
friar preacher	Yes	No	No	No
mendicant	Yes	Yes	No	No

As nouns, mendicant is a hypernym of friar preacher; that is, mendicant is a word with a broader meaning than friar preacher:

friar preacher: a Roman Catholic friar wearing the black mantle of the Dominican order
mendicant: a male member of a religious order that originally relied solely on alms

Other hypernyms of friar preacher include friar.

friar preacher (noun)	mendicant (noun)
a Roman Catholic friar wearing the black mantle of the Dominican order	a pauper who lives by begging
	a male member of a religious order that originally relied solely on alms

friar preacher (adjective)	mendicant (adjective)
	practicing beggary