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waver (EN)
verb, noun

verb “waver”

waver; he wavers; past wavered, part. wavered; ger. wavering
  1. to falter or weaken; to become unsteady or begin to fail
    Her determination did not waver throughout the difficult times.
  2. to be indecisive or hesitate between choices; to show doubt
    She wavered between accepting the job offer and staying at her current position.
  3. to sway or move back and forth unsteadily
    The tall tree wavered in the strong wind during the storm.
  4. to flicker or quiver, as a weak light
    The candle's flame wavered as the window opened.
  5. (of voice or hands) to tremble or shake
    His voice wavered when he spoke about the accident.
  6. to fluctuate or vary irregularly
    Oil prices wavered throughout the year due to changing demand.

noun “waver”

sg. waver, pl. wavers
  1. an act of hesitation or indecision
    There was a slight waver in his voice when he answered.
  2. someone who waves or enjoys waving
    The crowd was full of cheerful wavers greeting the runners.
  3. a tool used to create waves in hair
    She used a waver to add volume to her hairstyle.