Chinese radicals: the few dozen that unlock most characters (video)
There are 214 Chinese radicals, but 22 file half the characters on the HSK 1–4 lists. Which to learn first, what they mean and how they combine, measured.
Chapters
- 0:00Start
- 0:19The short answer
- 0:37What is a radical?
- 1:34You don't need all 214
- 2:32Some radicals are better clues
- 3:27Sound parts help, sometimes
- 4:15The radicals that combine most
- 4:56Look on the left
- 5:19Remember new characters
- 6:16What to do next
Transcript
Start
Chinese characters have been sorted under 214 radicals for over 300 years. But half the characters you'll learn up to HSK 4 are filed under just 22 of them. From SayMei Guides, by Mei Lin: Chinese radicals. The few dozen that unlock most characters.
The short answer
The short answer: you don't need all 214. About 40 radicals file two thirds of the characters on the HSK 1 to 4 lists. Learn those first, in the side forms you'll really see, like water and hand. And learn them inside real characters.
What is a radical?
So what is a radical? It's the part a dictionary files a character under, and every character has exactly one. 妈, mum, is filed under woman. 清, clear, is filed under water. Most radicals also hint at the meaning: a mum is a woman, and clear water is still water. But their first job is filing, so they aren't always a clue. The list of 214 became standard in 1716, with the Kangxi Dictionary. China's official table, revised in 2022, keeps 201. Many radicals change shape at the side of a character. Water, as in 河, river. Hand, as in 打, hit. Person, as in 你, you. The seven side forms you'll see most file more than one in five of the HSK 1 to 4 characters. Learn these shapes first.
You don't need all 214
So how many do you need? We looked up every character on the HSK reading lists in Unicode's database. Only 177 of the 214 radicals turn up at HSK 1 to 4. 口, mouth, files the most: 55 characters. Dozens of others file just one. Learn them biggest first, and they add up fast. The top 10 file a third of the characters, the top 22 half, and the top 41 two thirds. After about 50, the curve flattens. Our graded stories tell the same story: in SayMei's 166 books, the top 25 radicals cover half of everything a reader sees. One caveat: a radical narrows down the meaning, and you still learn each character. Try water in the explorer on the page. It files 4 characters at HSK 1, and 39 by HSK 4.
Some radicals are better clues
Some radicals are much better clues than others. We measured how closely each radical's characters hang together in meaning. Hand came out as the most reliable clue we found. 打, hit. 推, push. 拉, pull. 擦, wipe. Nearly everything it files is something you do with your hands. Grass is one of the weakest. Some of its characters are plants, like 茶, tea, and 花, flower. But it also files 蓝, blue, and 节, festival. Tree scored lower than we expected, too. It files 杯, cup, and 机, machine. We also measured which radicals mean similar things, and families came out of the data: water, fire and ice; walk, foot and run. Learn each family together, and each one reminds you of the others.
Sound parts help, sometimes
Now, the sound. About half the characters on the HSK 1 to 4 lists pair a radical for meaning with a sound part. 妈, mum, is woman plus 马, horse. The horse is only there for its sound. Everything built on 马 keeps that sound, and only the tone changes. But other sound parts drift. One gives you 很, very, and 眼, eye, which sound nothing alike. So how often does it help? Across all 528 of these characters, the sound part gives the exact reading about one time in five, and the right syllable about two times in five. And more than a quarter have no clear link at all. Treat it as a guess to check, never as the answer.
The radicals that combine most
Some radicals pair with far more sound parts than others, so they keep paying off. Across the HSK 1 to 6 lists, hand combines with 77 different sound parts, and water with 69. Seven radicals file more than a quarter of the HSK 1 to 4 characters: mouth, person, hand, tree, water, heart and speech. Start there. Watch out for one trap. At the side of a character, 肉, flesh, shrinks to a shape that looks exactly like 月, moon. In body words like 脸, face, and 腿, leg, that shape means flesh.
Look on the left
When you look a character up, start on the left. Half of the HSK 1 to 4 characters split into left and right. In those, the radical is on the left about four times in five. Top and bottom is less predictable. Grass always sits on top, while heart, in its full form, sits underneath, as in 想, think.
Remember new characters
Radicals turn a character into a short story, and stories stick. Here's the routine. One: name its parts. 请, please, is speech plus 青, green. Two: give each part its job. Speech carries the meaning, because asking politely is speech, and green carries the sound. Three: link it to a family. Clear, feeling and sunny share that sound part. Four: review it on a schedule. And five: meet it in real text. One caveat: some radicals are only filing labels. 一, one, files 东, east, though east has nothing to do with one. When there's no story, don't force one. For real text, SayMei's graded stories have pinyin, audio and an English line for every sentence, and chapter 1 of every book is free.
What to do next
So, what next? Learn the seven big radicals first, in their side forms. Use the explorer at your level. Study in families. Guess readings from sound parts, then check them. And read every day. You can talk with Mei Lin for free: your first lesson is 10 minutes, with no account and no card. The full guide, with the radical explorer, is on the page at saymei dot app.