Skip to content
Stroke order, etymology and audio for every word.Start learning
氦 — pronunciations, definitions, and tags
HanziPinyinEnglishTags
氦hàiheliumn, 10 strokes, radical 气, rank #18570, Very Hard
氦hàihelium (chemistry)unknown, 10 strokes, radical 气, rank #18570, Very Hard
hài(hai4)hai T4
  1. 1helium
  2. 2helium (chemistry)
Listen to the audio pronunciation 3 times to gain XP
March 24, 2026

氦hài(hai4)

氦 (hài) refers to helium, a colorless, odorless, tasteless gas that is lighter than air and is used in balloons and as a cooling medium in cryogenics. In scientific contexts, it is known for its non-reactive properties and is often found in discussions about the periodic table of elements.

Strokes10Radical气Frequency#18570DifficultyVery Hard
Cultural note

In China, helium is significant for celebrations, such as weddings and festivals, where helium balloons are commonly used to enhance the festive atmosphere. Additionally, helium's role in scientific research is emphasized in educational settings.

Memory tip

Think of a balloon floating high in the sky, filled with the light gas helium. The character 氦 includes the radical 气 (qì), which means 'air' or 'gas,' hinting at its gaseous nature, while the pronunciation 'hài' sounds like 'high,' reminding you of how helium-filled balloons float.

Meanings of 氦

hài(hai4)
1helium
2helium (chemistry)
Exercise 1 of 2

By ear

Play it, then pick what 氦 means.

About 氦

氦Simplified
10Strokes
气Radical
名词míngcínoun (n.)Part of Speech
#—Frequency Rank

Podcast: 氦

JasonAmy

Podcast: 氦

Listen to Jason & Amy break down this word for you

AI study notes for 氦

Usage Notes

氦 is primarily used in scientific or technical contexts, so it may be less common in everyday conversation. Be careful not to confuse it with other gases like 氧 (yǎng, oxygen) or 二氧化碳 (èr yǎng huà tàn, carbon dioxide). Tone is crucial; mispronouncing hài could lead to misunderstandings.

HSK Study Tips

While 氦 is not included in the standard HSK levels, it connects with HSK 3 vocabulary about elements and science, such as 水 (shuǐ, water) and 气 (qì, gas). Students should focus on recognizing it in scientific texts and conversations related to chemistry.

Common Mistakes

Learners often confuse 氦 with similar-sounding words. For example, saying 氧 (yǎng, oxygen) instead of 氦 (hài) is a common error. Always remember that 氦 is specifically for helium.

AI-enhanced 2026-03-24

Pronunciation of 氦

Premium — Locked

Tone practice

Pro

Drill the tone of 氦, say it back, see your pitch against the model voice, and earn XP towards mastery. Interactive tone practice is part of Pro.

Tone drillsPitch drawing+5 XP
Get Pro to unlock

Jason Explains 氦 to you

Let me explain 氦 for you

Make it yours

Jason looks at what you watch and listen to, the checkpoints you have cleared, our lessons and what you have been exploring, and explains 氦 through them.

Sign in free to make it personal. New accounts start with 200 AI credits.

How well do you know 氦?

Example

Learning Lab

Knowing 氦 is seven skills, not one.

Its meaning, its character, its pinyin, its tone — hearing it, saying it, writing it. The Learning Lab measures each one from your own practice, on every word you study, so you see what you actually know rather than how much you have done.

  • MeaningFree
  • CharacterFree
  • PinyinFree
  • TonePro
  • ListeningPro
  • SpeakingPro
  • WritingPro
See the Learning Lab Three facets free · no card needed

Etymology of 氦

Formation typepictophonetic
六书 ClassificationPhono-semantic (形声字)~80-90% of characters
Explanation

Phonosemantic compound. 气 represents the meaning and 亥 represents the sound.

Memory hint

gas

Semantic (meaning)气
+
Phonetic (sound)亥
Learn more about Phono-semantic (形声字) characters
Exercise 1 of 1

Origin

氦 = 气 + 亥. What kind of character does that make it?

Decomposition of 氦

IDS Structure⿹气亥
氦Full character
=
气qi4
enclosing
亥hai4
inner
Exercise 1 of 2

Parts

Which of these is part of 氦?

How to say helium in Chinese

“helium” in Chinese is氦hài

氦 (hài) refers to helium, a colorless, odorless, tasteless gas that is lighter than air and is used in balloons and as a cooling medium in cryogenics. In scientific contexts, it is known for its non-reactive properties and is often found in discussions about the periodic table of elements.

When to use 氦

氦 is primarily used in scientific or technical contexts, so it may be less common in everyday conversation. Be careful not to confuse it with other gases like 氧 (yǎng, oxygen) or 二氧化碳 (èr yǎng huà tàn, carbon dioxide). Tone is crucial; mispronouncing hài could lead to misunderstandings.

What learners get wrong

Learners often confuse 氦 with similar-sounding words. For example, saying 氧 (yǎng, oxygen) instead of 氦 (hài) is a common error. Always remember that 氦 is specifically for helium.

Write 氦

氦

Practice writing 氦 stroke by stroke. Watch the animation to learn the stroke order, then try writing it yourself.

Write correctly 3 times to earn XP

Grammar patterns of 氦

氦 functions as a noun — it names a person, place, thing, or concept. Place it as a subject before the verb (主+谓) or as an object after the verb (谓+宾). Most Chinese nouns require a measure word between the number and the noun (e.g. 一个/三本). It carries 2 related meanings, each with its own usage notes below. The example sentences below show it in action, with practice buttons (Listen, Practice Writing, Practice Speaking) on every line.

Exercise 1 of 2

Fill the gap

Type the missing word. Pinyin works; then pick the character.

____是一种非常轻的气体。

Helium is a very light gas.

Example sentences for 氦 (1)

Listen to all sentences once to receive XP
1
氦是一种非常轻的气体。

hài shì yī zhǒng fēicháng qīng de qìtǐ。

Helium is a very light gas.

Ask Jason

Have a question about 氦?

Jason answers about this word at your level: example sentences, how it differs from similar words, and a way to remember it.

Sign in free to ask. New accounts start with 200 AI credits.

Cultural Notes for 氦

🌏Cross-cultural Insight

In Western cultures, helium is often associated with party balloons, while in China, it also symbolizes joy and celebration, but there is a stronger emphasis on its scientific applications in education.

Word Family of 氦

Words containing this character1
氦hàihelium (chemistry)

Frequently asked questions about 氦

It is pronounced as 'hài' with a falling tone.

Jason Recommends

Not sure what to learn after 氦?

Jason picks three words from your level and explains why each one is worth your time next. It takes a free account so he knows what you already know.

A sample week, replayed. Every page you study lands here in the order you did it — your own replay starts with a free account.

See the Learning Lab