\ ˈtəf How to pronounce tuff (audio) \

Definition of tuff

: a rock composed of the finer kinds of volcanic detritus usually fused together by heat

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Other Words from tuff

tuffaceous \ ˌtə-​ˈfā-​shəs How to pronounce tuffaceous (audio) \ adjective

Examples of tuff in a Sentence

Recent Examples on the Web And on the other side of the layer of tuff deposited by Toba (which argon isotope dating puts at 74,000 to 76,000 years old), the same stone tools keep showing up, uninterrupted by anything that looks like a sudden apocalyptic depopulation. Kiona N. Smith, Ars Technica, "People survived the Toba supervolcano’s global winter after all," 26 Feb. 2020 Clarkson got into a tuff with Legend during the episode while vying for contestant Nelson Cade III, who said Stevie Wonder was his idol. Sara M Moniuszko, USA TODAY, "Kelly Clarkson to host the 2020 Billboard Music Awards for third time in a row," 25 Feb. 2020 Both items are made of tuff, carved from the Capitoline Hill that overlooks the Forum, and which is home to today’s City Hall. Washington Post, "Roman Forum find could be shrine to Rome’s founder, Romulus," 21 Feb. 2020 Inside the Roman Forum new exciting archaeological discovery: a hypogeum with a tuff sarcophagus from the 6th century BC. Fox News, "Ancient Rome stunner: Sarcophagus dedicated to Romulus discovered," 19 Feb. 2020 Some minerals in tuff contain traces of radioactive potassium-40, which decay like clockwork from the time the minerals were created until the present. Michael Greshko, National Geographic, "'Unprecedented' skull reveals face of human ancestor," 28 Aug. 2019 For $14, Tomsenn’s Dog Lion Mane transforms your dog into a ferocious King of the Jungle with a mane wig and a tuff to place on their tail. Selena Barrientos, House Beautiful, "Amazon Customers Are Raving About This $14 Lion Mane that Turns Dogs into Simba," 2 Oct. 2019 By counting up the decay products, Saylor’s team could tell when the crystals—and the tuff as a whole—were created. Michael Greshko, National Geographic, "'Unprecedented' skull reveals face of human ancestor," 28 Aug. 2019 Some of the most striking sights within the Cappadocia Plateau are villages carved into the volcanic tuff. George W. Stone, National Geographic, "Dinosaurs to gladiators: 10 World Heritage trips for families," 16 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tuff.' 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 tuff

1815, in the meaning defined above

History and Etymology for tuff

earlier tuph, tuft porous rock, from Middle French tuf, from Old Italian tufo

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Cite this Entry

“Tuff.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tuff. Accessed 30 Oct. 2020.

More from Merriam-Webster on tuff

Britannica English: Translation of tuff for Arabic Speakers

Britannica.com: Encyclopedia article about tuff

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