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know (EN)
глагол, существительное

глагол “know”

инфинитив know; он knows; пр. вр. knew; пр. прич. known; гер. knowing
  1. знать
    I know for certain that the keys are in the drawer because I placed them there myself.
  2. знать
    Did you know that they are divorced?
  3. знать (быть знакомым)
    I know the owner of that shop; we went to school together.
  4. понимать
    After years of research, she knows the subject inside out.
  5. испытать
    He has known hardship and isn't afraid of hard work.
  6. уметь
    Do you know Moonlight Sonata?

существительное “know”

know, только в единственном числе
  1. в курсе (in the know)
    Only a few people are in the know about the surprise party we're planning.