NB


Meaning of NB in English

( BrE ) (also N.B. US , BrE ) / ˌen ˈbiː; NAmE / abbreviation

used in writing to make sb take notice of a particular piece of information that is important (from Latin 'nota bene') :

NB The office will be closed from 1 July.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.