noun. a journey by a large group to escape from a hostile environment.
noun. the flight of Muhammad from Mecca to Medina in 622 which marked the beginning of the Muslim era; the Muslim calendar begins in that year.
1. Noun, singular or mass However, when referring to the period after the birth of Christ and before the hegira, some Islamic texts also use the abbreviation "C.E.," which is an abbreviation for "Christian era."