black diamond

noun

1
: dense black hematite
2
black diamonds plural : coal sense 3a
3

Examples of black diamond in a Sentence

Recent Examples on the Web
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At the New Mexico resort nestled in the southernmost Rockies, though, the trail merits only a single black diamond. Michelle Ruiz, Vogue, 7 May 2026 The website showed 146 of 171 trails open, with mostly black diamond and double-black diamond trails closed. The Vail Daily, Denver Post, 18 Mar. 2026 Much of Summit Central and Summit West are lit for night skiing, which is a really big deal here, including black diamond runs, which is unusual. Larry Olmsted, Forbes.com, 10 Mar. 2026 Go slow and steady down its beginner terrain, which makes up eight percent of the mountain; a bit faster down its intermediate blues, which make up 42 percent of the mountain; or zoom down the black diamonds, which make up the other 50 percent. Stacey Leasca, Travel + Leisure, 25 Feb. 2026 See All Example Sentences for black diamond

Word History

First Known Use

1763, in the meaning defined at sense 3

Time Traveler
The first known use of black diamond was in 1763

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Cite this Entry

“Black diamond.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/black%20diamond. Accessed 12 May. 2026.

Kids Definition

black diamond

noun
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