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bilingualism

[bahy-ling-gwuh-liz-uh m or, Canadian, -ling-gyoo-uh-]
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noun
  1. the ability to speak two languages fluently.
  2. the habitual use of two languages.
  3. Canadian. a government-supported program encouraging all citizens to acquire a knowledge of both English and French.
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Also bi·lin·gual·i·ty [bahy-ling-gwal-i-tee or, Canadian, -ling-gyoo-al-] /ˌbaɪ lɪŋˈgwæl ɪ ti or, Canadian, -lɪŋ gyuˈæl-/.

Origin of bilingualism

First recorded in 1870–75; bilingual + -ism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Word Origin and History for bilinguality

bilingualism

n.

1873, from bilingual + -ism.

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Online Etymology Dictionary, © 2010 Douglas Harper