Synonyms for Exodus (same or very similar meaning)
WordNet sense 1 (the second book of the Old Testament: tells of the departure of the Israelites out of slavery in Egypt led by Moses; God gave them the Ten Commandments and the rest of Mosaic law on Mount Sinai during the Exodus):
Book of ExodusWordNet sense 2 (a journey by a large group to escape from a hostile environment):
hegira, hejiraFrom the ODE community, based on WordNetadd/edit