Synonyms

tooth and nail

American

adverb

with all one's resources or energy; fiercely.

We fought tooth and nail but lost.

tooth and nail Cultural

To fight “tooth and nail” is to fight with the intensity and ferocity of a wild animal: “The resistance forces fought the invading troops tooth and nail.”

Etymology

Origin of tooth and nail

First recorded in 1525–35

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“They will fight tooth and nail over everything.”

From Barron's

"We had to fight tooth and nail for that result," said Smith.

From Barron's

Highlighting her record as education secretary, Phillipson said she had fought "tooth and nail" for policies like the expansion of free school meals.

From BBC

But according to Ms Skinner's lawyer, all the high-value complex claims are being fought "tooth and nail".

From BBC

“Instead, they are paying a law firm to fight tooth and nail against obligations that are clear in the settlement agreement — and that a judge has affirmed they are in violation of.”

From Los Angeles Times

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023