presumption - definition and synonyms

noun 

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/prɪˈzʌmpʃ(ə)n/
singularpresumption
pluralpresumptions
  1. 1
    [countable] a belief that something is true because it seems reasonable or likely
    presumption that:

    We make the presumption that officials are honest.

    1. a.
      legal the belief that something is true because no one has proved that it is not
      presumption of:

      a presumption of innocence

  2. 2
    [countable/uncountable] behaviour that annoys people because it shows too much confidence and not enough respect