LET SB


Meaning of LET SB in English

down

to fail to help or support sb as they had hoped or expected :

I'm afraid she let us down badly.

This machine won't let you down.

He trudged home feeling lonely and let down.

—related noun let-down

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