To interfere in something is to get involved or participate in a way that causes problems or creates obstacles.

  • Heavy traffic interferes with a person’s travel plans.
  • A thunderstorm interfered with our plans to have a party outside.
  • It might not be a good idea to interfere between two people who are fighting.
  • Please, don’t interfere.
  • You shouldn’t interfere.
  • What reason do you have to interfere?
  • Human activities have an impact on and interfere with nature.
  • Solar radiation interferes with the reception on a satellite dish.
  • The Russian government clearly interfered with U.S. elections in 2016. ( We know it happened. The evidence is overwhelming.)
  • You shouldn’t interfere when it comes to a situation that you know nothing about.


Severe headaches interfere with his ability to get things done at work.

The word "interference" is a noun:

  • Many people believe that interference in U.S. elections resulted in a Trump presidency.
  • Solar radiation can cause interference for a satellite dish.
  • The U.S. government does not always follow its policy of noninterference when it comes to the internal affairs of foreign governments.

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July 19, 2018