How to Use H{inf}2{/inf}O in a Sentence

H2O

noun
  • Drain the water, add a fresh batch of cold H2O, then stir and strain off the skins that float to the top.
    — Karla Walsh, Better Homes & Gardens, 28 Jan. 2025
  • And besides, who doesn't need a little reminder every once in a while about taking a sip of H2O?
    — Sam Dangremond and Roxanne Adamiyatt, Town & Country, 21 Apr. 2022
  • Once liquid, that sweetener bakes into a shiny, hard topping as the H2O is released as steam.
    — Karla Walsh, Better Homes & Gardens, 14 June 2026
  • For simple hydration, H2O of all kinds works A-OK.
    — Karla Walsh, Better Homes & Gardens, 16 Jan. 2026
  • Farmers constantly replenish water, so there’s a steady supply of fresh, clean H2O to drink.
    — Mary Squillace, Robb Report, 3 Mar. 2021
  • Last but not least, don’t underestimate the importance of sipping on good old H2O throughout the day.
    — Michele Ross, SELF, 3 Mar. 2026
  • Each sheet did indeed form a perfect crystal of repeating H2O molecules.
    — Quanta Magazine, 12 Feb. 2025
  • And, don’t forget good old H2O, which should always remain your primary and most consumed beverage.
    — Cynthia Sass, Mph, Health.com, 18 June 2020
  • The team’s partner, H2O logistics, offered weekly sailings to Maui on their freight boats to the island.
    — Helen Li, Los Angeles Times, 18 Aug. 2023
  • In my experience, H2O tends to be the enemy of powder, let alone the key ingredient.
    — Alyssa Brascia, Peoplemag, 29 Feb. 2024
  • In addition to waking up your nervous system and digestion, starting with a big glass of H2O sets you up for a more hydrated day.
    — Kate Donovan, Martha Stewart, 8 Apr. 2026
  • The higher its gold content, the better a watch can stand up to corrosion when exposed to H2O (leather bands, though, are a no-no for chlorine or salty water).
    — Stacia Datskovska, Footwear News, 27 May 2026
  • Its name HTeaO is an obvious play on words with H2O, the main component of the earth’s atmosphere.
    — Gary Stern, Forbes.com, 15 Aug. 2025
  • But in the water ice that falls as snow or crusts over windows on frosty mornings, only the oxygen atoms are orderly; H2O’s two Hs can orient any which way.
    — Elise Cutts, Scientific American, 19 Mar. 2024
  • Hydrogen, as the ‘H’ in H2O, is obviously a key component in the creation of water.
    — Eric MacK, Forbes.com, 16 Apr. 2025
  • At the treatment plants run by Pani client H2O Innovation, equipment failures can be expensive.
    — Nick Rockel, Fortune, 18 Jan. 2024
  • This recent discovery, however, marks the first time scientists have found whole molecules of H2O in lunar samples.
    — Margherita Bassi, Smithsonian Magazine, 6 Aug. 2024
  • With a bathing suit and access to water, nearly everyone can dip their toes into H2O to not only cool off this summer but also improve their overall fitness and health.
    — Rena Kingery, Discover Magazine, 25 June 2022
  • Oatmeal Hearty oatmeal is a comforting breakfast staple and an excellent way to increase your H2O intake.
    — Joey Skladany, Better Homes & Gardens, 21 June 2024
  • Forming a crystal means molecules of H2O must align themselves in specific orientations to form a rigid lattice structure.
    — Elizabeth Rayne, Ars Technica, 7 Dec. 2023
  • And there's no secret hydration hack for celebrities, either, though Sharma's A-list clients add some supplements to their H2O for even more impact.
    — Stephanie Sengwe, People.com, 1 Mar. 2025
  • Hey, this is Southern California—the commitment to H2O hydration runs deep.
    — John Vorwald, Robb Report, 15 June 2024
  • Wherever adventure takes you, the Swift 22 H2O keeps things comfortable with generous padding on the back panel and straps.
    — Kevin Brouillard, Travel + Leisure, 20 Sep. 2023
  • Ur Rehman argues that still not enough has been done to invest in solutions to create a sustainable supply of H2O as humans continue to guzzle up the resource.
    — Sasha Rogelberg, Fortune, 23 Apr. 2026
  • An ancient and unusual object Water, or H2O, typically contains two hydrogen atoms and one oxygen atom.
    — Ashley Strickland, CNN Money, 1 May 2026
  • The potted plant experiment gave Wilde the idea that incorporating unused wool—which can hold up to 35% of its weight in H2O—into his compost pile might keep the product moist.
    — Lindsey King, TIME, 23 Dec. 2024
  • While its smiling face looks up at you sweetly, its 620W motor generates a beastly 2300mm of H2O of suction pressure.
    — Alex Harrington, MSNBC Newsweek, 15 Sep. 2025
  • Bennu has water-bearing clay with a fibrous structure, which according to Lauretta, was the key material that ferried H2O to Earth.
    — Popular Science, 11 Oct. 2023
  • Published July 16 in the journal Nature, the findings were the first time that water in its molecular form, H2O, had been found in physical lunar samples.
    — Eric Lagatta, USA TODAY, 12 Aug. 2024
  • Reconstructing the original molecules, Stone and his colleagues were surprised to find that plenty of H2O was wafting about at more than 90 miles above the surface—way above the hygropause.
    — Charlie Wood, Popular Science, 12 Nov. 2020

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'H{inf}2{/inf}O.' 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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