buffer zone
Americannoun
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a neutral zone or area between two potentially hostile nations, designed to prevent any overt acts of aggression.
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any area serving to mitigate or neutralize potential conflict.
noun
Etymology
Origin of buffer zone
First recorded in 1905–10
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.
"Our seas are not an empty void or a buffer zone between global powers -- they are our estate, our livelihood, and our identity as stewards of the sea."
From Barron's ● Jul. 10, 2026
That route, called the Traffic Separation Scheme, established one 2-mile-wide lane for entering and one 2-mile-wide lane for leaving the Persian Gulf, plus a 2-mile-wide buffer zone.
From MarketWatch ● May 5, 2026
He added that the buffer zone needed to remain to "block the danger of invasion".
From BBC ● Apr. 17, 2026
The military is trying to carve out a buffer zone inside Lebanon deep enough to put border communities beyond the militants’ reach.
From The Wall Street Journal ● Mar. 30, 2026
All of these things are possible: we’ve both reached that borderline age, that buffer zone in which it can still be believed such tricks will work if you avoid bright sunlight.
From "Cat's Eye" by Margaret Atwood
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.