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all of a sudden

Definition of all of a sudden

  1. :  very quickly in usually an unexpected way :  suddenly <I was walking down the street when, all of a sudden, I heard an explosion.>

Word by Word Definitions

  1. :  the whole amount, quantity, or extent of

    :  as much as possible

    :  every member or individual component of

  1. :  wholly, quite

    :  only, exclusively

    :  just

  1. :  the whole number, quantity, or amount :  totality

    : used in such phrases as for all I know, for all I care, and for all the good it does to indicate a lack of knowledge, interest, or effectiveness

    :  everybody, everything

  1. :  the whole of one's possessions, resources, or energy

  1. :  happening or coming unexpectedly

    :  changing angle or character all at once

    :  marked by or manifesting abruptness or haste

  1. :  an unexpected occurrence :  emergency

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