Noun vacillation has 2 senses
  1. hesitation, vacillation, wavering - indecision in speech or action
    --1 is a kind of indecision, indecisiveness, irresolution
    Derived form: verb vacillate1
  2. swing, swinging, vacillation - changing location by moving back and forth
    --2 is a kind of motion, movement, move
    Derived form: verb vacillate2
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