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English definition of “zone”

zone

noun [C] uk   /zəʊn/ us    /zoʊn/
B1 an area, especially one that is different from the areas around it because it has different characteristics or is used for different purposes: an earthquake zone a nuclear-free zone He was charged with driving 75 mph in a 55 mph zone. This stretch of coast has been designated a danger zone. The UN Security Council has established a no-fly zone (= one into which aircraft are not permitted to fly). specialized geography, environment one of the five parts the Earth is divided into according to temperature, marked by imaginary lines going around it from east to west: temperate zones

zone

verb [T usually passive] uk   /zəʊn/ us    /zoʊn/ specialized
to give a special purpose to a particular area, such as an area in a town: The former dockyard has been zoned for tourist use.
(Definition of zone from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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