unstop

/ʌnˈstɑp/
verb
  1. To remove a blockage or obstruction from something, allowing it to flow or function freely.
    • She tried to unstop the drain with a plunger after the water stopped flowing.
    • We need to unstop the chimney before lighting the fireplace.
    • The plumber used a special tool to unstop the kitchen sink.
  2. To open something that is sealed or closed, especially by removing a stopper or cap.
    • The chemist unstopped the flask to release the gas.
    • He carefully unstopped the bottle of vintage wine.
    • She unstopped the jar of honey to add some to her tea.
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