C1noun10K+

UK/["/ˈhaɪdrədʒən/"]/US/["/ˈhaɪdrədʒən/"]/

Meaning of Hydrogen

In simple words: A light gas that is a part of water and many other substances.

Hydrogen in a sentence

How to use Hydrogen

Used in scientific contexts, often when discussing chemistry or energy. Can be informal when discussing hydrogen fuel or technologies but should not be used in casual conversation without context.

Grammar pattern

standalone noun

Memory hint

Think of 'high' energy – hydrogen is a fuel for energy.

Related words

Collocations with Hydrogen

  • hydrogen gas
  • hydrogen bond
  • hydrogen fuel

Synonyms for Hydrogen

Common mistakes with Hydrogen

  • Confused with 'hydroxide' (the ion) instead of hydrogen (the element).
  • Mispronounced as 'hydro-gen' instead of 'high-dro-jen'.

Compare Hydrogen with Fuel, Element, Gas

Hydrogen appears in

Hydrogen in other languages

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Frequently asked questions about Hydrogen

What does Hydrogen mean?

A light gas that is a part of water and many other substances.

What is the definition of Hydrogen?

a chemical element. Hydrogen is a gas that is the lightest of all the elements. It combines with oxygen to form water.

How do you use Hydrogen in a sentence?

Hydrogen is the simplest element on the periodic table.

Can you give another example of Hydrogen?

Many cars are now using hydrogen as a renewable fuel source.

What are synonyms for Hydrogen?

Common alternatives include fuel, element, gas.

What words go with Hydrogen?

It commonly pairs with hydrogen gas, hydrogen bond, hydrogen fuel.

What are common mistakes when using Hydrogen?

Confused with 'hydroxide' (the ion) instead of hydrogen (the element). Mispronounced as 'hydro-gen' instead of 'high-dro-jen'.

How do you pronounce Hydrogen?

US: /["/ˈhaɪdrədʒən/"]/, UK: /["/ˈhaɪdrədʒən/"]/. Listen to the audio above to hear native pronunciation.

When should I use Hydrogen?

Used in scientific contexts, often when discussing chemistry or energy. Can be informal when discussing hydrogen fuel or technologies but should not be used in casual conversation without context.

What CEFR level is Hydrogen?

"Hydrogen" is at C1 level on the CEFR scale.