BE / GET IN ON STH


Meaning of BE / GET IN ON STH in English

( informal ) to be / become involved in sth; to share or know about sth :

I'd like to be in on the plan.

Is she in on the secret?

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