interference

noun

1. 1

   (American football) blocking a player's path with your body

   he ran interference for the quarterback

2. 2

   the act of hindering or obstructing or impeding

3. 3

   any obstruction that impedes or is burdensome

4. 4

   a policy of intervening in the affairs of other countries

5. 5

   electrical or acoustic activity that can disturb communication