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亿

Tap the pinyin to hear it

100 million

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HSK 3.0
Level 2
Old HSK
Level 5
Strokes
3
Radical
人 +1
Structure
Left–right 左右
Traditional
億
Common rank
#3,139
Unicode
U+4EBF

Formation & memory

Break the character into parts you already know.

How 亿 is formed

Phono-semantic compound (形声字)

亻 meaning “people” + 乙 sound ( yǐ )

Components 亻 乙

How to remember it

one hundred million · Heisig RSH #2066

人 person + fishhook

Keyword method from Heisig's Remembering Simplified Hanzi.

Words with 亿

The most common words first — learning a character in context makes it stick.

WordPinyinMeaning
数以亿计 shù yǐ yì jì countless; innumerable
数十亿 shù shí yì several billion
十多亿 shí duō yì over one billion; more than a billion
亿万富豪 yì wàn fù háo multimillionaire
亿万富翁 yì wàn fù wēng billionaire; multimillionaire
亿万 yì wàn millions and millions
万亿 wàn yì trillion
十亿 shí yì one billion; giga-
千亿 qiān yì myriads; hundred billion
杨亿 Yáng Yì Yang Yi (974-1020), Northern Song dynasty writer and poet

Sound family

Characters sharing the sound component 乙 — compare how they read.

CharacterPinyinMeaning
乙 sound part yǐ second; 2nd heavenly stem
艺 yì art; talent, ability; craft
忆 yì to remember, to reflect upon; memory
虱 shī bug, louse, parasite
穵 wā a deep hollow; to dig out, to gouge
钇 yǐ yttrium