interference

Noun

• any obstruction that impedes or is burdensome

• (American football) blocking a player's path with your body
  • he ran interference for the quarterback
    

• electrical or acoustic activity that can disturb communication

• the act of hindering or obstructing or impeding

• a policy of intervening in the affairs of other countries

Related words

• Synonyms: 
  hindrance , hinderance , hitch , preventive , preventative , encumbrance , incumbrance , noise , disturbance , intervention
• Antonyms: 
  nonintervention , noninterference