migration

noun

mi·​gra·​tion mī-ˈgrā-shən 

: the act, process, or an instance of migrating

watched the migration of the birds overhead

migrational

mī-ˈgrā-sh(ə-)nəl 

adjective

Examples of migration in a Sentence

Recent Examples on the Web

Babiš has opposed some key European Union policies on environment and migration and rejected any financial aid for Ukraine and guarantees for EU loans to the country fighting the Russian invasion, joining the ranks of Prime Ministers Viktor Orbán of Hungary and Robert Fico of Slovakia. —ABC News, 21 Mar. 2026

Environmental groups estimate that thousands of fish are killed each year by the federal and state projects that pump water from the Delta, with the Central Valley Project specifically killing fish by cutting flows into San Francisco Bay-Delta and blocking salmon migration. —Chaewon Chung, Sacbee.com, 21 Mar. 2026

The cliff swallows fly from Argentina, one of the longest migrations of any species. —Kurt Snibbe, Oc Register, 21 Mar. 2026

The migration surveys, running from March 16 through May 31, invite residents to take part in hands-on conservation work. —Dallas Morning News, 20 Mar. 2026

Word History

Etymology

French or Latin; French, from Latin migration-, migratio, from migratus (past participle of migrare to migrate) + -ion-, -io -ion — more at migrate

First Known Use

circa 1527, in the meaning defined above

Phrases Containing migration

• pre-migration

Rhymes for migration

• ablation
• bination
• carnation
• cassation
• castration
• causation
• centration
• cessation
• cetacean
• chelation
• citation
• collation

Kids Definition

migration

noun

mi·​gra·​tion

mī-ˈgrā-shən

1

: the act or an instance of migrating

2

: a group of individuals that are migrating

Medical Definition

migration

noun

mi·​gra·​tion mī-ˈgrā-shən 

: the act, process, or an instance of migrating

migration of larval nematodes to the lungs