idioms

  out of touch (not in contact, not in communication) I have been out of touch with John for years now. I’m not quite sure where she lives. We’ve been out of touch for a long time.   envocabulary.com

  in touch (in contact, in communication) He is still in touch with most of his school friends. Can I get in touch with you by telephone?   envocabulary.com

  paint the town red  informal (to go out to drink and enjoy yourself, usually in order to celebrate something) I want to paint the town red tonight. Care to join me? Mike has passed his exams. We’re going out to paint the town red.   envocabulary.com

  it’s not rocket science  informal (it’s not difficult to do or to understand) This is just normal work; it’s not rocket science. It’s not rocket science once you get the hang of it.   envocabulary.com

  hit the books  informal (to study or begin to study hard) I must hit the books now if I’m going to pass the test. My grades were getting bad, so my parents had me hit the books.   envocabulary.com