Meaning & use
hydrogen
The lightest and most abundant chemical element, a colorless, odorless gas that burns easily.
See it in a sentence
Hydrogen combines with oxygen to form water.
Some car manufacturers are developing engines that run on hydrogen fuel.
A note on using this word
Hydrogen has the atomic symbol H and is often discussed today as a clean alternative to fossil fuels.
Words with a similar meaning
This term is best learned through its definition and examples.
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Make it your own
Write a sentence using “hydrogen”, then compare your use with the examples above.
Your draft stays on this page and is not sent anywhere.