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slip - definition and synonyms


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verb slip pronunciation in American English /slɪp/
Word Forms
present tense
present participleslipping
past tenseslipped
past participleslipped
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  1. 1
    [intransitive] if you slip, your feet slide accidentally and you lose your balance or fall over
    Margaret slipped and broke her arm.
    slip on: Be careful you don’t slip on the wet floor.
    1. a.
      [intransitive] if something that is moving around slips, it fails to stay firmly on a surface
      The truck’s wheels were slipping and spinning in the mud.
    2. b.
      [intransitive] if something that you are holding or wearing slips, it falls from your hands, or it falls from position
      The knife slipped and cut my finger.
      slip out of: The ball slipped out of my hands as I tried to catch it.
      slip off: Tighten the straps so they won’t slip off your shoulders.
    3. c.
      [transitive] to become free, or to no longer be held by something
      The boat slipped its moorings and started to drift.
  2. 2
    [intransitive] to go somewhere, especially quickly and quietly without people noticing you or stopping you
    slip into/out of/through etc.: Several people managed to slip past the guards and into the concert.
    slip into/out of/through etc.: Sarah slipped into the room and carefully shut the door.
  3. 3
    [transitive] to slide something into a place or position
    slip something into/around/under etc. something: I’ll slip the letter under your door.
    slip something into/around/under etc. something: John slipped his arm around his wife’s waist.
    1. a.
      to put something somewhere, or to give something to someone quickly and quietly, so that other people do not see what you are doing
      Michael slipped the bar of candy into his pocket.
      slip someone something: If you slip him some cash he’ll get you good seats.
  4. 4
    [intransitive] to become gradually less strong or good, or to move into a worse condition
    Support for the death penalty has been slipping.
    Profits slipped by 13 percent last year.
    Standards have been slipping over the years.



a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

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an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

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