immigration

UK: /ˌɪmɪˈgreɪʃ^ən/ US: /ˌɪməˈgreɪʃən/ ,(im′i grā′shən)

WordReference Random House Learner's Dictionary of American English © 2026

im•mi•gra•tion /ˌɪməˈgreɪʃən/  n. [uncountable]

1. the act of immigrating:
   Immigration to that country rose in the early part of the century.

See -migr-.

WordReference Random House Unabridged Dictionary of American English © 2026

im•mi•gra•tion  (im′i grā′shən), n. 

1. the act of immigrating.
2. a group or number of immigrants.

• 1650–60; im-¹ + migration

im′mi•gra′tion•al, im•mi•gra•to•ry  (im′ə grə tôr′ē, -tōr′ē), adj. 

Collins Concise English Dictionary © HarperCollins Publishers::

immigration / ˌɪmɪˈɡreɪʃən/ noun

1. the movement of non-native people into a country in order to settle there
2. the part of a port, airport, etc where government employees examine the passports, visas, etc of foreign nationals entering the country