/ˈdeltə/ noun
[ U ] a British qualification from the University of Cambridge for experienced teachers of English as a foreign language (the abbreviation for 'Diploma in English Language Teaching to Adults')
/ˈdeltə/ noun
[ U ] a British qualification from the University of Cambridge for experienced teachers of English as a foreign language (the abbreviation for 'Diploma in English Language Teaching to Adults')
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005