fur·​nace | \ ˈfər-nəs How to pronounce furnace (audio) \

Definition of furnace

: an enclosed structure in which heat is produced (as for heating a house or for reducing ore)

Examples of furnace in a Sentence

Recent Examples on the Web The furnace broke, and, amazingly, a heating tech showed up the very next day. Dave Lieber, Dallas News, "From a broken furnace to no water, it’s one thing after another. Can you relate?," 18 Feb. 2021 Almost all other steel is made from scrap metal that’s melted down in an electric arc furnace. Maria Gallucci, Wired, "How Steel Might Finally Kick Its Coal Habit," 6 Feb. 2021 The basement makes a great out-of-sight spot, and the coolest place in the house during a fire is in the basement near an outside wall, away from the furnace. Phil Bourjaily, Field & Stream, "The Complete Guide to Buying a Gun Safe," 25 Jan. 2021 The combustibles were next to the wood-burning furnace in the basement, according to the release. Christine Mui, BostonGlobe.com, "Deadly Sheffield fire ruled accidental, officials say," 15 Jan. 2021 The furnace was found 60 miles from the mine, indicating secrecy about the technology. Caroline Delbert, Popular Mechanics, "Archaeologists Just Uncovered the World's First Furnace from 6,500 Years Ago," 12 Oct. 2020 The result of these products is that your body becomes a furnace for burning fat. Norcal Marketing, Chron, "Best Fat Burners: Top 5 Thermogenic Supplements of 2021," 4 Feb. 2021 Starting in the 1960s, a series of Soviet missions revealed a furnace of a world, with a thick, cloudy atmosphere that keeps the surface so hot that lead would melt on it like ice on Earth. Marina Koren, The Atlantic, "The Biggest Maybe in Astronomy," 15 Dec. 2020 First a finger felt hot, and then an industrial furnace seemed to blast behind me. Virginia Heffernan, Wired, "Something Was Wrong. My Nightgown Was in Flames," 10 Dec. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'furnace.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of furnace

13th century, in the meaning defined above

History and Etymology for furnace

Middle English furnas, from Anglo-French forneise, from Latin fornac-, fornax; akin to Latin formus warm — more at therm

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Time Traveler for furnace

Time Traveler

The first known use of furnace was in the 13th century

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Statistics for furnace

Last Updated

28 Feb 2021

Cite this Entry

“Furnace.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/furnace. Accessed 7 Mar. 2021.

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More Definitions for furnace



English Language Learners Definition of furnace

: one for melting metals
chiefly US : one for heating a building or apartment


fur·​nace | \ ˈfər-nəs How to pronounce furnace (audio) \

Kids Definition of furnace

: an enclosed structure in which heat is produced (as for heating a house or melting metals)

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More from Merriam-Webster on furnace

Nglish: Translation of furnace for Spanish Speakers

Britannica English: Translation of furnace for Arabic Speakers

Britannica.com: Encyclopedia article about furnace

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