noun
a language that sb learns to speak well and that they use for work or at school, but that is not the language they learned first :
ESL or English as a Second Language
noun
a language that sb learns to speak well and that they use for work or at school, but that is not the language they learned first :
ESL or English as a Second Language
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005