Dominican vs Black Friar

Dominican and Black Friar both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dominican	Yes	Yes	No	No
Black Friar	Yes	No	No	No

As nouns, Dominican and Black Friar are synonyms defined as:

Dominican and Black Friar: a Roman Catholic friar wearing the black mantle of the Dominican order

Other synonyms of Dominican include Blackfriar, friar preacher.

Dominican (noun)	Black Friar (noun)
a Roman Catholic friar wearing the black mantle of the Dominican order	a Roman Catholic friar wearing the black mantle of the Dominican order
a native or inhabitant of the Dominican Republic

Dominican (adjective)	Black Friar (adjective)
of or relating to Saint Dominic or the Dominican order
of or relating to or characteristic of the Dominican Republic or its people