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English definition of “English as a second language”

English as a second language

noun [U]  /ˈɪŋ·ɡlɪʃ æz ə ˈsek·ənd ˈlæŋ·ɡwɪdʒ, -lɪʃ/ (abbreviation ESL)
English as taught to people whose main language is not English and who live in a country where English is an official or main language
(Definition of English as a second language from the Cambridge Academic Content Dictionary © Cambridge University Press)
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