H2O

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Water molecules are made up of two hydrogen atoms and one oxygen atom, giving water its familiar H2O formula.

From Science Daily • May 8, 2026

That’s the challenge—and opportunity—facing industrial stocks that specialize in H2O.

From Barron's • Apr. 16, 2026

H2O is the stuff of life, but for several decades, water producers and sommeliers have been working to make it something more: the stuff of taste.

From The Wall Street Journal • Oct. 20, 2025

Here, at depths of 5km, where no sunlight can penetrate, the oxygen appears to be produced by naturally occurring metallic “nodules” which split seawater - H2O - into hydrogen and oxygen.

From BBC • Jul. 22, 2024

Later, for no special reason, the fashion became to render the number as subscript: H2O.

From "A Short History of Nearly Everything" by Bill Bryson