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zero tolerance

American  

noun

  1. a policy of very strict, uncompromising enforcement of rules or laws.


zero tolerance British  

noun

    1. the policy of applying laws or penalties to even minor infringements of a code in order to reinforce its overall importance

    2. ( as modifier )

      a zero-tolerance policy on drugs

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of zero tolerance

First recorded in 1935–40

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.

See Examples For:

There would be zero tolerance of any off-the-ball moves that were designed to stop an opponent getting to the ball and led to goals.

From BBC Jul. 8, 2026

“Safety is a cornerstone of our business and we have zero tolerance for inappropriate and unsafe behavior.”

From Los Angeles Times May 29, 2026

"The safety of our customers and our crew is our number one priority and we have zero tolerance for disruptive or threatening behaviour on our flights," a Qantas spokesperson told AFP on Sunday.

From Barron's May 17, 2026

Into this chaos walks a man with an iron fist, a famous surname and zero tolerance for insubordination.

From BBC May 13, 2026

Finally, in December 1958 the zero tolerance which the Commissioner had recommended in 1955 became effective.

From "Silent Spring" by Rachel Carson

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