Resistance

Resistance could mean:

 The general ability to stop something from happening (Ex. resistance to water means that the object can avoid being hurt by water) 
 Resistance, an ability to reject infection
 Electrical resistance, the repulsion of a current in a circuit
 A struggle against an oppressive government. See also Rebellion
The Resistance was a fictional military set up by Princess Leia Organa to combat the growing threat of the First Order in the Star Wars universe.