- Hero, Heron, Hero of Alexandria - Greek mathematician and inventor who devised a way to determine the area of a triangle and who described various mechanical devices (first century)
--1 is a kind of mathematician; inventor, discoverer, artificer
- heron - gray or white wading bird with long neck and long legs and (usually) long bill
--2 is a kind of wading bird, wader
--2 is a member of Ardeidae, family Ardeidae
--2 has particulars: