TIGHTEN UP (ON STH)


Meaning of TIGHTEN UP (ON STH) in English

to become stricter or more careful :

Laws on gambling have tightened up recently.

The police are tightening up on under-age drinking.

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