NTH


Meaning of NTH in English

/ enθ; NAmE / adjective

( informal ) [ only before noun ] used when you are stating that sth is the last in a long series and emphasizing how often sth has happened :

It's the nth time I've explained it to you.

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IDIOMS

- to the nth degree

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