noun
[ sing. ] ( abbr. IB ) an exam which is taken by students in many different countries in the world around the age of 18 or 19, and which includes up to six subjects
noun
[ sing. ] ( abbr. IB ) an exam which is taken by students in many different countries in the world around the age of 18 or 19, and which includes up to six subjects
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005