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To begin your search, go to the alphabetical index below and click on the first letter of the word you are searching for.

impinge on, impinge upon

Whether it means “encroach,” “affect” or “hit,” impinge is followed by the preposition on or upon.

  • Do not impinge so much on your boss’s time.
  • My exercise of freedom must not impinge upon my neighbour’s right to freedom.
  • When Ivan opened the window, the roar of traffic impinged suddenly upon our ears.