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English definition of “chimney”

chimney

noun [C] uk   /ˈtʃɪm.ni/ us  

chimney noun [C] (PIPE)

B2 a hollow structure that allows the smoke from a fire inside a building to escape to the air outside: Factory chimneys belched dense white smoke into the sky.Vents and ventilationRoofs and parts of roofs

chimney noun [C] (PASSAGE)

specialized geology a narrow vertical passage in the rock of a cliff or mountain, through which a person can climbCaves, cracks and crevicesHills and mountains
(Definition of chimney from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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