magnate vs business leader

magnate and business leader both are nouns.

Word	Noun	Adjective	Verb	Adverb
magnate	Yes	No	No	No
business leader	Yes	No	No	No

As nouns, magnate and business leader are synonyms defined as:

Other synonyms of magnate include baron, big businessman, king, mogul, power, top executive, tycoon.

magnate (noun)	business leader (noun)
a very wealthy or powerful businessman	a very wealthy or powerful businessman