The Chinese radicals worth learning first
There are 214 Kangxi radicals. You do not need all of them to start guessing what characters mean. Here are around thirty that carry most of the weight, with the characters they unlock.
Chinese characters look like arbitrary shapes until somebody shows you that they are built from parts. After that, they look like compounds, and the language stops feeling like memorising ten thousand unrelated pictures.
The parts used for dictionary filing are called radicals. The standard set has 214 of them, fixed by the Kangxi dictionary in 1716 and still used by most dictionaries today. You do not need 214. A few dozen do most of the work.
Why radicals are worth the time
Three separate returns, and most learners only know about the first:
- Lookup. You can find a character in a dictionary when you cannot read it.
- Meaning. The radical usually hints at the meaning category. A character with the water radical is very likely to do with liquid.
- Memory. Characters stop being strokes and become combinations, which is far easier to store. 好 is not fifteen strokes; it is woman plus child.
That third one matters most in the long run. Learners who know radicals memorise new characters noticeably faster, because they are storing two familiar pieces instead of one unfamiliar whole.
The high-value radicals
Grouped by how they tend to appear.
People and body
| Radical | Meaning | Appears in |
|---|---|---|
| 亻 | person | 你 他 们 住 作 但 |
| 女 | woman | 好 妈 姐 她 婚 始 |
| 口 | mouth | 吃 喝 叫 唱 问 吗 |
| 心 / 忄 | heart, feeling | 想 忙 快 情 怕 慢 |
| 扌 | hand | 打 找 拿 提 拉 换 |
| 目 | eye | 看 眼 睛 睡 着 |
| 足 / ⻊ | foot | 跑 跳 路 跟 踢 |
Nature and materials
| Radical | Meaning | Appears in |
|---|---|---|
| 氵 | water | 河 海 洗 酒 汤 没 |
| 火 / 灬 | fire | 烧 热 点 照 烦 |
| 木 | tree, wood | 林 森 桌 树 板 机 |
| 土 | earth | 地 场 城 坐 块 |
| 石 | stone | 硬 碗 破 确 |
| 艹 | grass, plant | 花 草 茶 菜 药 苦 |
| 禾 | grain | 和 秋 种 稻 香 |
| 虫 | insect | 蚊 蜜 虾 蝶 |
| 鱼 | fish | 鲜 鲁 鲨 |
| 马 | horse | 骑 驾 骂 妈 |
Made things and places
| Radical | Meaning | Appears in |
|---|---|---|
| 宀 | roof | 家 安 字 完 客 宿 |
| 广 | shelter | 店 床 座 应 康 |
| 门 | door | 问 间 闻 闭 闹 |
| 车 | vehicle | 轮 转 较 辆 |
| 钅 | metal | 钱 银 铁 钟 错 |
| 纟 | silk, thread | 红 绿 给 纸 线 经 |
| 饣 | food | 饭 饿 馆 饺 饱 |
| 刂 | knife | 到 别 刻 剪 划 |
Abstract and action
| Radical | Meaning | Appears in |
|---|---|---|
| 讠 | speech | 说 话 语 请 谢 认 |
| 辶 | movement | 这 近 送 过 还 迎 |
| 力 | strength | 办 加 动 助 努 |
| 日 | sun, day | 明 早 时 晴 春 是 |
| 月 | moon, or flesh | 朋 服 肚 胖 脸 期 |
Two warnings
The meaning hint is a hint, not a rule. 法 (law) has the water radical for historical reasons that will not help you. Treat the radical as raising a probability, not settling a question.
月 is two radicals wearing the same face. In 明 (bright) and 期 (period) it is the moon. In 肚 (belly), 胖 (fat) and 脸 (face) it is a flattened form of 肉, flesh. If a character with 月 is about the body, you are looking at meat, not moon.
How to actually learn them
Do not sit down and memorise a list of 214. It is boring and it does not stick, because you have nothing to attach them to.
Instead: learn the radical the first time you meet a character containing it. When you learn 说, note that 讠 means speech, and that 话, 语 and 请 will follow. You get the radical for free, in context, attached to a character you actually needed.
Within a few hundred characters you will have picked up most of this table without a single dedicated study session. The remaining rare radicals can wait, possibly forever.
Using them to look things up
When you meet a character you cannot read, find its radical, count the remaining strokes, and search the radical index. It is slower than typing, and it is the only method that works when you have no idea how the character sounds.
KoiSpeak has the full 214-radical index for exactly those moments, alongside handwriting input for when you can see the shape but cannot name the parts. Both exist because the alternative is closing the book.