Definition of interference in English:

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Pronunciation: /ˌin(t)ərˈfirəns/


1The action of interfering or the process of being interfered with: he denied that there had been any interference in the country’s internal affairs an unwarranted interference with personal liberty
More example sentences
  • Because of these findings we decided to design an assessment without possible interferences between the cognitive and metacognitive processes.
  • He predicted: ‘Over the years, unique professional traditions and qualities come into being, which will give judges the strength and the power to ward off outside interferences.’
  • Largely they are smart, know what they are doing, and can surely handle their lives independently and successfully without such interferences at least.
intrusion, intervention, intercession, involvement, trespass, meddling, prying
informal butting in
1.1 American Football The action of illegally interfering with an opponent’s ability to catch a passed or kicked ball.
Example sentences
  • In college, pass interference is a 15-yard penalty - period.
  • Through four games the Redskins have been penalized once for pass interference, and they have not been penalized for defensive holding or illegal contact after five yards.
  • Pass interference is by far the most annoying exclusion.
1.2 American Football The legal blocking of an opponent or opponents to clear a way for the ballcarrier.
Example sentences
  • Hamilton did hit Lewis, but pass interference is legal behind the line of scrimmage.
1.3 Baseball Any of various forms of hindering a player’s ability to make a play, run, hit, etc.
Example sentences
  • Umpire Rich Carcia working right field saw no interference on the play although the call has been the subject of controversy ever since.
  • Fortunately for the Tribe, the interference had no bearing on the inning as David Justice walked with the bases loaded before Jim Thome hit a grand slam.
  • It appeared as if the A's were about to put together a rally, but Parker was called out for batter-runner interference even though he was never struck by the baseball.
1.4(In ice hockey and other sports) the illegal hindering of an opponent not in possession of the puck or ball.
Example sentences
  • The GAA has allowed physical interference off the ball as part of the game.
  • The NHL should be applauded for yet another crackdown on obstruction and interference, which have damaged the entertainment value of the game severely.
  • Obstruction and interference continue to infest the expansion-crazed NHL, but Roberts, Corson and Tucker can muck it up.
2 Physics The combination of two or more electromagnetic waveforms to form a resultant wave in which the displacement is either reinforced or canceled.
Example sentences
  • Atomic beams can act like light waves and exhibit all of the classic wave effects, like interference and refraction.
  • In this case, the destructive interference occurs for waves traveling in most directions, but not for those ultimately heading toward the focal point.
  • On the detecting screen we see a picture identical to one which is obtained from interference of waves.
2.1The fading or disturbance of received radio signals caused by unwanted signals from other sources, such as unshielded electrical equipment, or broadcasts from other stations or channels.
Example sentences
  • This makes wireless networks more immune to interference from other radio signals than if they transmitted on a single frequency.
  • Every time you start your car ignition it causes interference to the radio band - so it's a very confusing technical issue.
  • The said equipment must not cause interference to others.
disruption, disturbance, distortion, static


run interference

American Football Move in such a way as to provide legal interference sense 1.
Example sentences
  • Stubblefield is doing a lot of the dirty work, taking on blockers and running interference so his teammates can quickly close on the running backs.
  • But it makes perfect sense if you think of them as blockers, running interference for Wilson.
North American informal1.1 Intervene on someone’s behalf, typically so as to protect them from distraction or annoyance: Elizabeth was quick to run interference and said that the professor would be very busy
More example sentences
  • In sharp contrast to the technology bust when law firms wanted to trim their ranks, many of today's firms are running interference in attempts to keep their associates from straying.
  • Perhaps his worst infraction is this: He gets in the way, running interference to make sure that no other parasite-like creatures can be created on his watch.
  • So he continues to lie shamelessly, secure in the knowledge that the mainstream media are running interference for him.



Pronunciation: /-fəˈrenCHəl/
Example sentences
  • Ultra high frequency modalities, magnetic field generators, interferential and ultra sound are some of those most frequently employed.
  • The low interferential current is the result of two interacting medium frequency current produced by IF units.
  • Experiments conducted with a variety of text images showed that this algorithm is effective for removing interferential curve in text image.


Mid 18th century: from interfere, on the pattern of words such as difference.

Words that rhyme with interference

adherence, appearance, clearance, coherence, perseverance

For editors and proofreaders

Syllabification: in·ter·fer·ence

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