The Latin word aeon, also spelled eon or æon, means "age," "forever," or "for eternity". It is derived from the koine Greek word αίών (aion), which at one point meant "age," "a period of existence" or "life". It has a similar meaning to the Sanskrit word kalpa.
AEON (taken from the Greek word for "eternity") is one of the Big Four Japanese eikaiwa or English education companies. It was founded in 1973 by Kiyoshi Aki, who is still company president as of 2006. AEON's corportate headquarters are in Okayama, which is also home to the teacher training center for AEON West Japan.