How to Use cobalt in a Sentence

cobalt

noun
  • Green cathedral spires rise from a cobalt sea.
    — Brianna Randall, Forbes.com, 30 May 2026
  • The same is true for lithium, cobalt, and rare earths.
    — Robert Ginsburg, Forbes.com, 25 Aug. 2025
  • The water should be a pale sky blue, not navy or cobalt.
    — Alexandra Emanuelli, Southern Living, 11 Dec. 2025
  • In a sea of green and black parkas, the cobalt color stands out.
    — Aleta Burchyski, Outside Online, 26 Jan. 2020
  • The ocean was varying shades of blue, from turquoise to cerulean to cobalt.
    — Jaclyn Cosgrove, Los Angeles Times, 15 May 2025
  • The new battery will be cobalt and nickel-free.
    — James Rogan, The Washington Examiner, 14 Aug. 2025
  • That’s why this cobalt is such a pleasant surprise.
    — Glamour, 26 Sep. 2025
  • Take your pick from standout colors like brick red and blue cobalt.
    — Merrell Readman, Travel + Leisure, 29 Nov. 2024
  • Dusk faded, moving from shades of pink and blue to a deep cobalt.
    — Alfredo Corchado, Dallas News, 20 Apr. 2023
  • But the nickel and cobalt kept flowing.
    — Vivian Salama, The Atlantic, 24 May 2026
  • Their son wore a dark blue T-shirt and cobalt-colored pants.
    — Elle Meier, InStyle, 29 Jan. 2026
  • What this means is that a huge amount of the global cobalt supplies comes from these mines.
    — Mark Dummett, Time, 29 Sep. 2017
  • Three days after the surgery, lab tests came back with the level of cobalt in her blood.
    — Beth Mole, ArsTechnica, 2 July 2026
  • This year, cobalt prices have jumped some forty per cent, to more than twenty dollars a pound.
    — Nicolas Niarchos, The New Yorker, 24 May 2021
  • That is half the total amount of cobalt produced worldwide last year.
    — The Economist, 15 Mar. 2018
  • Tops are iron, with four unpaired 3d electrons, and cobalt, with three.
    — IEEE Spectrum, 22 Mar. 2023
  • In addition to bold cobalt, this bag also comes in a creamy caramel shade.
    — Halie Lesavage, Harper's BAZAAR, 25 Jan. 2023
  • The color scheme continued with her teal and cobalt shoes and turquoise hair.
    — Sarah Spelling, Vogue, 4 Aug. 2021
  • The two-mile stretch of sand features mountain views and cobalt water.
    — Megan Wood, Travel + Leisure, 3 Aug. 2021
  • Tops are iron, with four unpaired 3d electrons, and cobalt, with three.
    — Glenn Zorpette, IEEE Spectrum, 29 Apr. 2026
  • The pop of cobalt on the classic white is the perfect way to ease into nail art.
    — Amanda Le, InStyle, 31 May 2026
  • Whales frolic in the cobalt waters, while seabirds flit in the salt winds overhead.
    — Sara Miller Llana, The Christian Science Monitor, 29 Sep. 2021
  • Similar trends were seen in manganese and cobalt.
    — Paul Rogers, Mercury News, 2 Dec. 2025
  • Shop it in black, cobalt, or pink, and pair it with glam hoops to up the overall elegance.
    — Rachel Sylvester, Glamour, 6 Jan. 2025
  • Shop it in black, cobalt, or pink, and pair it with glam hoops to up the overall elegance.
    — Rachel Sylvester, Glamour, 9 Nov. 2023
  • The royal paired the pumps with cobalt Fiona Clare couture.
    — Maggie Clancy, Footwear News, 20 June 2026
  • Look at the race to mine and identify lithium and cobalt for instance.
    — Shivaram Rajgopal, Forbes, 1 Jan. 2022
  • The cobalt shade extends from her roots to the long bangs that fall right at her eyes, covering her brows.
    — Gabi Thorne, Allure, 27 Sep. 2021
  • The cobalt hue with vibrant blooms is a surefire way to brighten up anyone's day.
    — Sophie Dweck, Town & Country, 3 Apr. 2022
  • Stylists paint on streaks of varying shades of blue, like cobalt, turquoise, teal, and hints of green to create the look.
    — Devon Abelman, Allure, 31 May 2018

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'cobalt.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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