Hero of Alexandria vs Heron

Hero of Alexandria and Heron both are nouns.

Word	Noun	Adjective	Verb	Adverb
Hero of Alexandria	Yes	No	No	No
Heron	Yes	No	No	No

As nouns, Hero of Alexandria and Heron are synonyms defined as:

Hero of Alexandria and Heron: Greek mathematician and inventor who devised a way to determine the area of a triangle and who described various mechanical devices (first century)

Other synonyms of Hero of Alexandria include Hero.

Hero of Alexandria (noun)	Heron (noun)
Greek mathematician and inventor who devised a way to determine the area of a triangle and who described various mechanical devices (first century)	Greek mathematician and inventor who devised a way to determine the area of a triangle and who described various mechanical devices (first century)