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English definition of “furnace”

furnace

noun [C] uk   /ˈfɜː.nɪs/ us    /ˈfɝː-/
a container that is heated to a very high temperature, so that substances that are put inside it, such as metal, will melt or burn: People who work with furnaces in a steel factory need to wear protective clothing. This room's like a furnace (= is very hot)! US a piece of equipment for heating a building: It's cold in here - should I turn on the furnace?
(Definition of furnace from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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