- the older brother of Moses, usually regarded as the first high priest of the Hebrews. Ex. 28; 40:13–16.
- Henry LouisHank, born 1934, U.S. baseball player.
- a male given name.
- Old Testament the first high priest of the Israelites, brother of Moses (Exodus 4:14)
masc. proper name, in the Old Testament the brother of Moses, from Hebrew Aharon, probably of Egyptian origin. The Arabic form is Harun. Aaron’s beard as a type of herb is from 1540s.