
The idiom fight tooth and nail is used to describe a scenario in which someone is fighting with great intensity and determination to achieve a goal or overcome a challenge. The phrase originates from the imagery of a wild beast in a fierce battle, using its teeth and nails (or claws) as weapons. It conveys a sense of deep commitment and relentless drive, indicating that an individual is utilizing all their resources and giving their utmost effort to succeed or defend their position. This expression has been used since the 1500s and continues to be a vivid way to express fierce determination in various contexts beyond physical combat.
| Characteristics | Values |
|---|---|
| Origin | Ancient Latin phrase "toto corpore atque omnibus ungulis" (all the body and every nail) |
| Earliest use | 1560s |
| Notable mentions | Sir Thomas More's "In a Dialogue of Comfort and Tribulation" (1535), Shakespeare's "King Lear" (1605), Charles Dickens' "David Copperfield" (1850) |
| Meaning | To fight with all your effort, determination, and intensity to achieve a goal or overcome a problem |
| Usage | Applicable in various contexts, not just physical fights |
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What You'll Learn

Origin and meaning
The idiom "fight tooth and nail" means to fight or struggle fiercely, with full effort and determination. It conveys a deep commitment to doing everything in one's power to achieve a goal or resist opposition. It paints a vivid picture of someone using every last bit of their strength and determination as if fighting with both teeth and nails, or giving it their "all the body and every nail". The phrase is applicable in various scenarios, from competitive sports to passionate debates, underscoring a relentless drive and unwavering persistence.
The expression "fight tooth and nail" is said to have originated from the Latin phrase "toto corpore atque omnibus ungulis", which translates to "all the body and every nail". The earliest known use of this expression in print was in the 1560s, with a notable mention in Ninian Winget's "Certain Tractates", where he refers to it as a proverb. However, the phrase's roots can be traced back even further to Sir Thomas More's "In a Dialogue of Comfort and Tribulation" in 1535, where he wrote, "They would fayne kepe them as long as euer they mighte, euen with tooth and nayle". The phrase didn't gain widespread use until the 1700s, and it has been a part of the English language ever since, showing its timeless appeal and relevance.
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Usage in a sentence
The idiom "fight tooth and nail" is used to convey a deep commitment to achieving a goal or overcoming an obstacle. It implies that one is using all their resources and fighting with great intensity and determination to secure a win or defend their position. Here are some examples of how this idiom can be used in sentences:
- "I fought tooth and nail to get this promotion, and I'm not going to let anyone take it away from me without a fight."
- "They are fighting tooth and nail to protect their land from being acquired by big city developers."
- "She'll fight tooth and nail to keep her position as the team's captain."
- "The environmental group is fighting tooth and nail to preserve the ancient forest from being destroyed by the proposed highway."
- "He fought tooth and nail to finish the race, despite his injury, and his perseverance paid off."
- "We must fight tooth and nail against any attempts to infringe upon our freedom of speech."
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Synonyms
The idiom "fight tooth and nail" means to use all one's effort to win against someone or to overcome some problem. It is used to describe a scenario where someone is fighting very hard or with great intensity and determination. Here are some synonyms that convey similar meanings:
- "Full steam ahead": This phrase indicates using all power and resources available to achieve a goal, implying a strong effort.
- "Striving with all one's might": Conveys the idea of giving maximum effort and energy toward a goal, similar to an animal using its teeth and claws.
- "Battling ferociously": Describes a fierce and intense struggle to achieve something, indicating a strong determination to succeed.
- "Going all out": Suggests putting forth maximum effort and taking risks to achieve a desired outcome.
- "Giving it one's best shot": Emphasizes doing the best one can, similar to the intensity conveyed by "fighting tooth and nail."
- "Leaving no stone unturned": This phrase indicates leaving nothing to chance and exerting all possible effort to attain a goal.
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History
The idiom "fight tooth and nail" originates from the Latin phrase "toto corpore atque omnibus ungulis," which translates to "all the body and every nail." The expression was first used in print in the 1500s, specifically in Sir Thomas More's "In a Dialogue of Comfort and Tribulation" from 1535. In this work, the phrase is used in the context of a 'no holds barred' fight: "They would fayne kepe them as long as euer they mighte, euen with tooth and nayle."
The phrase draws its imagery from the idea of animals fighting with their natural weapons—their teeth and claws. This analogy conveys a sense of fierce determination, implying that one is using all available means and fighting with all their might to achieve a goal or overcome a challenge.
The expression gained popularity in the 1700s and has been used by notable authors such as Charles Dickens in "David Copperfield" (1850) and Charles Reade in "The Cloister and the Hearth" (1800). Shakespeare also used a variation of the phrase in "King Lear" in 1605, demonstrating its enduring relevance in English literature.
Today, "fight tooth and nail" is commonly used to describe a wide range of scenarios, from competitive sports to passionate debates, political struggles, and personal challenges. It conveys a strong sense of commitment, determination, and relentless effort in the face of opposition or adversity.
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Examples
The idiom "fight tooth and nail" is used to describe a variety of scenarios where someone is trying very hard to achieve something or overcome a challenge. It conveys the idea of relentless drive, fierce determination, and unwavering persistence in the face of tough opposition. Here are some examples that illustrate the use of this idiom:
- Politics and Social Activism: A political candidate might say, "I will fight tooth and nail to bring about the changes I have promised." Similarly, a social activist fighting for a cause could be described as someone who fights tooth and nail to make a positive impact in their community.
- Competitive Sports: An underdog sports team that pulls off a surprising victory might be described as having fought tooth and nail to secure the win.
- Career and Professional Goals: Someone striving for a promotion or a coveted job position might say, "I am fighting tooth and nail to get that promotion."
- Personal Beliefs and Rights: An individual standing up for their beliefs or defending their rights could be described as fighting tooth and nail to uphold their values.
- Protecting Possessions and Property: A person or community resisting the acquisition of their land by developers can be said to be fighting tooth and nail to protect their property.
- Education and Future Opportunities: Parents or guardians striving to provide a good education for their children might be described as fighting tooth and nail to ensure a bright future for their offspring.
- Overcoming Adversity: An injured athlete who perseveres to finish a race exemplifies fighting tooth and nail to overcome physical challenges.
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Frequently asked questions
The expression means to use all one's effort and determination to win against someone or to overcome a problem. It conveys a deep commitment to doing everything in one's power to achieve a goal or resist opposition.
The phrase comes from the descriptive imagery of a wild beast in a fierce battle, using its teeth and nails (or claws) as weapons. The earliest known use of this expression was in the 1560s, but its roots can be traced back to the Latin phrase "toto corpore atque omnibus ungulis," meaning "all the body and every nail."
Yes, the expression can be used in various situations, not just physical fights. It can be applied to any challenging scenario where one is trying very hard to achieve something or overcome a problem. It is a vivid way to communicate that you are giving it your all.










































