Definitions for aaronˈɛər ən, ˈær-
Random House Webster's College Dictionary
Aar•onˈɛər ən, ˈær-(n.)
the older brother of Moses, usu. regarded as the first high priest of the Hebrews. Ex. 28; 40:13–16.
Henry Louis (“Hank”), born 1934, U.S. baseball player.
Aaron, Henry Louis Aaron, Hank Aaron(noun)
United States professional baseball player who hit more home runs than Babe Ruth (born in 1934)
(Old Testament) elder brother of Moses and first high priest of the Israelites; created the golden calf
(Judaism & Christianity) The elder brother of Moses in the Book of the Exodus.
A male given name.
Origin: From אהרן (Ahărōn), of unknown meaning, possibly meaning "bearer of martyrs", or perhaps also, or instead, related to the Ancient Egyptian "aha rw" ("warrior lion"), though it has been suggested to also mean "elevated", "exalted" or "high mountain", or "woe to this pregnancy".
The Nuttall Encyclopedia
the elder brother of Moses, and the first high-priest of the Jews, an office he held for forty years.