NOT AT ALL


Meaning of NOT AT ALL in English

I .

used as a polite reply to an expression of thanks :

'Thanks very much for your help.' 'Not at all, it was a pleasure.'

II .

used to politely accept thanks or to agree to sth :

'Thanks a lot.' 'Not at all.'

'Will it bother you if I smoke?' 'Not at all.'

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