top executive vs baron

top executive and baron both are nouns.

Word	Noun	Adjective	Verb	Adverb
top executive	Yes	No	No	No
baron	Yes	No	No	No

As nouns, top executive and baron are synonyms defined as:

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

top executive (noun)	baron (noun)
a very wealthy or powerful businessman	a British peer of the lowest rank
	a very wealthy or powerful businessman
	a nobleman (in various countries) of varying rank