Fail (verb)

  1. Be unable to do something successfully.
  2. Not achieve the desired result or effect.
  3. Cease to function properly.

Origin:

Middle english (in the sense "to be lacking, prove insufficient"): from old french faillir, from latin fallere "to deceive".

Examples:

  1. He failed to finish the race.
  2. The experiment failed because of a lack of funding.
  3. Her heart failed after a long illness.
  4. The engine failed on the way to the airport.
  5. The new product launch failed to generate sales.
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