emigration
Word family (noun) immigration ≠ emigration immigrant ≠ emigrant (verb) immigrate ≠ emigrate
From Longman Business Dictionaryemigrationem‧i‧gra‧tion /ˌemɪˈgreɪʃən/ noun [uncountable] the process of leaving your own country and going to live in another one → compare immigration → net emigration