1. fight fire with fire - Verb
2. fight fire with fire - Phrase
fight fire with fire (third-person singular simple present fights fire with fire, present participle fighting fire with fire, simple past and past participle fought fire with fire)
(idiomatic) To respond to an attack with a similar or identical counter-attack (e.g. to respond to gunfire with reciprocal gunfire).
People who fight fire with fire usually end up with ashes. Abigail Van Buren
With the Reaction arming for conquest, the Corporations trading with the enemy and the Direction planning to stamp out the rebel robots and their allies for good, he has to fight fire with fire. Source: Internet
Not to necessarily fight fire with fire but to reach out and explain why the letter writer really ought to throw away that murky glass of water that he has been sipping on for decades. Source: Internet
It goes something like this: "I was kidnapped by a gang, so I decided to fight fire with fire." Source: Internet
With plans to integrate their technology into the IAS platform, the Swarm team has also joined the Fraud Lab, providing additional expertise that will strengthen IAS’s research capabilities to fight fire with fire. Source: Internet