Quick answer: “Fight Fire with Fire” means use the same methods as your opponent in order to beat them.
Fight fire with fire — to respond to an attack or problem by using the same methods or tactics as the person or force causing the problem.
Origin & History
The idiom has a literal basis in firefighting. One technique used in forest and grass fires is the "controlled burn" or "backfire" — deliberately starting a smaller fire in front of an approaching wildfire to consume the fuel it needs to spread. When the two fires meet, the larger one is starved of fuel and dies out. The earliest recorded uses of the phrase in English date to the 19th century, and Shakespeare used the concept in "King John" (1596): "Be stirring as the time; be fire with fire."
Today the idiom is used metaphorically to describe any strategy where you use your opponent's own methods against them — in business, politics, sport, or personal conflicts. It can be used approvingly or as a warning that such tactics may escalate the situation. Reference works such as the Cambridge Dictionary catalogue thousands of such figurative expressions, showing how idiomatic meanings take shape over time.
Example Sentences
| Sentence | Context |
|---|---|
| "The company decided to fight fire with fire and launched its own competitive price cuts." | Business competition |
| "She fought fire with fire, responding to his public criticism with her own statement." | Public conflict |
| "Some people think you should fight fire with fire; others prefer to take the moral high ground." | Ethical debate |
| "The team fought fire with fire, playing physical football to match their opponents." | Sports strategy |
| "He fought fire with fire in the negotiation, refusing to concede any points." | Negotiation tactics |
| "Rather than ignoring the attacks, she decided to fight fire with fire and confront them head-on." | Personal response |
Use It in Conversation
Dialogue Example
Leo: The opposition keeps spreading misinformation about us. What should we do?
Kim: I say we fight fire with fire. Release our own detailed report on their record.
Leo: That's bold, but it might work. Let's run it by the communications team first.
How to Use It
The idiom is neutral to slightly informal. It is often used as a recommendation or description of strategy: "let's fight fire with fire", "they fought fire with fire". It can be used approvingly or critically, depending on whether the speaker thinks the tactic is wise.
Common Mistakes
Mistakes to Avoid
We should fight fire by fire.
We should fight fire with fire. — The correct preposition is "with", not "by".
She fought fires with fire.
She fought fire with fire. — Both nouns are singular and without articles in the fixed idiom.
Similar Idioms
Practise This Idiom
Want to understand the grammar behind this? Explore our Grammar guides.
Quick Check: Fight Fire with Fire
2 questions — test what you just learned.
1. What does “Fight Fire with Fire” mean?
2. Complete the sentence: “"The company decided to _____ and launched its own competitive price cuts."”
Frequently Asked Questions
What does "fight fire with fire" mean?
"Fight fire with fire" means to use the same methods or tactics as your opponent in order to defeat or counter them. It describes a strategy of matching aggression or force with the same.
Where does "fight fire with fire" come from?
The phrase has a literal basis in firefighting — a "controlled burn" or "backfire" uses a smaller fire to consume the fuel of an approaching wildfire. Shakespeare referenced the concept in "King John" (1596), and the idiom entered common English in the 19th century.
Can you give an example of "fight fire with fire" in a sentence?
Example: "The company decided to fight fire with fire and launched its own competitive price cuts." It describes matching the opponent's strategy directly.
Is "fight fire with fire" always a good strategy?
Not always. The idiom can be used approvingly to suggest a strong response, or as a warning that matching aggression may escalate the conflict. Context determines whether it is recommended or criticised.
What CEFR level is "fight fire with fire"?
Typically B2 (Upper-Intermediate). It is commonly used in news, political commentary, sports reporting, and everyday discussion.
Is "fight fire with fire" formal or informal?
The idiom is neutral to slightly informal. It is suitable in conversation, opinion writing, and business discussions, but is less appropriate in very formal or academic writing.
What idioms are similar to "fight fire with fire"?
Similar expressions include "give as good as you get" (respond to attacks with equal force), "an eye for an eye" (retaliate in kind), and "two can play at that game" (I can use the same tactic as you).
How do I practise "fight fire with fire"?
Find a news story about a competitive situation — in politics, sport, or business — and write a sentence explaining how one side fought fire with fire. Then try LexFizz Flash Cards.
What is the grammatical structure of "fight fire with fire"?
It follows the structure: subject + fight/fought + fire with fire. Example: "They fought fire with fire." It can also be used as an infinitive recommendation: "We should fight fire with fire."
Is "fight fire with fire" used in British and American English?
Yes. The idiom is well established in both British and American English and is widely understood in professional, political, and everyday contexts.