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buckle

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verb buckle pronunciation in American English /ˈbʌk(ə)l/
Word Forms
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present tense
I/you/we/theybuckle
he/she/itbuckles
present participlebuckling
past tensebuckled
past participlebuckled
  1. 1

    buckle

    or

    buckle up

    [intransitive/transitive] to fasten a buckle, or to be fastened with a buckle

    The bag buckles at the side.

  2. 2
    [intransitive/transitive] to bend, or to make something bend under great pressure

    The pillars began to buckle under the strain.

    1. a.
      [intransitive] to suddenly become weak and bend

      I could see his knees buckle after that last punch.

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