migration
migration
noun
OPAL W
/maɪˈɡreɪʃn/
uncountable, countable
1 the movement every year of large numbers of birds or animals from one place to another
the seasonal migration of blue whales
the migration routes of birds
TOPICS Birds C1
Collocations
adjective
seasonalautumnfall…
… of migration
wave
migration + verb
occurtake placeincrease…
migration + noun
pathpatternroute…
preposition
migration frommigration to
2 migration (from…) (to…) the movement of people to a new country or area in order to find work or better living conditions
migration from rural to urban areas
It was one of the largest mass migrations in US history.
Net migration— more people moving to the state than leaving—accounts for about two thirds of the population gain.
TOPICS Social issues C1
3 ​the act of moving programs, etc. from one computer system to another; the fact of changing from one computer system to another