apprehension - definition and synonyms

noun 

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/ˌæprɪˈhenʃ(ə)n/
singularapprehension
pluralapprehensions
  1. 1
    [countable/uncountable] a feeling of worry or fear that something bad might happen

    Many of us face our retirement with apprehension.

    Anja noticed the look of apprehension on his face.

  2. 2
    [uncountable] formal the act of arresting someone