Hanzi Writer

How to Write 亿 (yì) — Meaning “Hundred million”

HSK Level 2 3 strokes Radical: 亻

亿 (yì) means "Hundred million" in Chinese. It has 3 strokes with the radical 亻, and is HSK Level 2.

Rated 1.7/5 in difficulty (beginner-friendly).

Harder than 3% of HSK Level 2 characters.

Appears in 3+ common words including 一亿 (yī yì), 亿万 (yì wàn), 十亿 (shí yì).

In the Hanzi Writer app, most learners master 亿 within 3 practice attempts using stroke-by-stroke animation.

Stroke order practice for 亿 - yì

Practice Writing 亿 (yì)

Open Hanzi Writer to see the animated stroke order and practice writing 亿 with real-time feedback.

The character 亿 (yì) is written with 3 strokes. Follow the standard Chinese stroke order: top to bottom, left to right, outside before inside. The radical is one of its key components.

Practice the correct stroke order with the Hanzi Writer app to see animated stroke-by-stroke guidance with real-time feedback.

亿 means Hundred million.

As an HSK Level 2 character, 亿 is among the first characters beginners learn.

Character亿
Pinyinyì (yi)
MeaningHundred million
Strokes3
Radical
HSK Level2
Difficulty1.7/5

The character 亿 is a phono-semantic compound. The radical 亻 (person) suggests human activity, while the component 乙 (yǐ, 'second' or 'hook') serves as a phonetic hint. Originally meaning 'to calculate' (counting people or goods), it later became the term for 'hundred million'—an immense number that only a vast population could represent.

💡 Memory Tip: Picture a person (亻) using a giant hook (乙) to scoop up a hundred million shiny coins from a treasure pile.

亿 yī yì
one hundred million
亿 yì wàn
Hundreds of millions
亿 shí yì
one billion

他打算投资一亿元兴建这所学校。

tā dǎ suàn tóu zī yī yì yuán xīng jiàn zhè suǒ xué xiào 。

He plans to invest 100 million yuan to build this school.

他是知名的亿万富翁。

tā shì zhī míng de yì wàn fù wēng

He is a well-known billionaire.

这部电影赚了十亿。

zhè bù diàn yǐng zhuàn le shí yì

This movie earned one billion.

Character Pinyin Strokes Radical
亿 (current) 3
shén / shí 4
rén 4
4
Stroke order practice for 亿 - yì

Practice Writing 亿 (yì)

Open Hanzi Writer to see the animated stroke order and practice writing 亿 with real-time feedback.

✨ Animated stroke order · Handwriting recognition · HSK-graded practice · Free to use

Frequently Asked Questions about 亿

亿 is composed of the radical 亻 (person on the left) and the number 乙 (yǐ, meaning "second" or hook shape). The person radical suggests something related to people or counting, while 乙 gives the sound and hints at a large number — together they form the meaning "hundred million," a huge quantity associated with population.

More HSK Level 2 Characters

Characters with Radical 亻

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