Kanji and hanzi. Japanese and Chinese. Same characters, two completely different languages. But how similar are they really? Can a Chinese person pick up a Japanese newspaper and understand it? Can a Japanese person read a Chinese menu? The answer is much more complicated (and interesting) than a simple yes or no.
The Story: How Kanji Came to Japan
Chinese characters (hanzi) arrived in Japan around the 5th-6th century through Korea and direct trade contacts with China. The Japanese adopted them to write their own language, but with a problem: Japanese is structurally very different from Chinese. So they did something ingenious and crazy at the same time: they took Chinese characters and adapted them, giving many of them two types of reading — the original Chinese reading (on'yomi) and a native Japanese reading (kun'yomi). And that's where the famous complexity of kanji comes from.
The 5 Fundamental Differences
1. The Form of Characters
In the 20th century, both Japan and China simplified some characters, but in different and independent ways. Result: Today there are three versions of many characters.
| Meaning | Traditional (TW/HK) | Japanese | Simplified (CN) |
|---|---|---|---|
| Village | 國 | 国 | 国 |
| Study | 學 | 学 | 学 |
| Spirit | 氣 | 気 | 气 |
| Map | 圖 | 図 | 图 |
| Art | 藝 | 芸 | 艺 |
| Body | 體 | 体 | 体 |
| Wind | 風 | 風 | 风 |
| Dragon | 龍 | 竜 | 龙 |
As you can see, sometimes Japanese and simplified Chinese coincide (国, 学), other times they don't (気 vs 气, 図 vs 图). Japanese has simplified fewer characters than China, therefore it is in an intermediate position between traditional and simplified Chinese.
2. The Readings: The Biggest Gap
This is the difference that makes everything complicated. In Chinese, each character generally has ONE pronunciation (pinyin). In Japanese, the same character can have 2, 3 or even 10+ different readings depending on the context.
Extreme example: the kanji 生 (life/birth) has at least 10 readings in Japanese: セイ, ショウ, い(きる), う(まれる), は(える), なま, き, お(う), and others. In Chinese? Sheng only. A Chinese who studies Japanese learns the meanings very quickly, but the readings are a whole new nightmare.
3. Different Meanings (Dangerous False Friends)
Many characters have the same meaning in both languages. But some have completely different meanings, and can create embarrassing situations.
| Word | In Japanese | In Chinese | Level of embarrassment |
|---|---|---|---|
| 手紙 (pans) | Letter (correspondence) | Toilet paper | High |
| 勉強 (benkyō) | Study | Force/oblige | Medium |
| 大丈夫 (daijoubu) | Okay/no problem | Brave man | Bass |
| 娘 (musume) | Daughter | Mother/mother | High |
| 汽車 (kisha) | Train | Car | Medium |
| 新聞 (shinbun) | Newspaper | News (generic) | Bass |
| 経理 (keiri) | Accounting | Manager/director | Medium |
Imagine a Chinese person in Japan who sees a sign with 手紙 and thinks of toilet paper instead of mailbox. These differences are real and can make for funny (or very embarrassing) misunderstandings.
4. Kanji Exclusive to Japan (Kokuji)
The Japanese didn't just import characters from China. They also invented new ones, called kokuji (国字, literally national characters). These kanji do not exist in Chinese and a Chinese person has never seen them in his life.
- 峠 (touge) - mountain pass: 山 + 上 + 下 = going up and down a mountain
- 辻 (tsuji) - crossroads: purely Japanese character
- 働 (hataraku) - to work: 人 + 動 = person who moves = to work
- 込 (komu) - enter crowded/pour in: very used in verbal compounds
- 畑 (hatake) - cultivated field (not rice): 火 + 田 = field burned to fertilize
5. Grammar Changes Everything
Even if you could read all the kanji in a Japanese sentence, you wouldn't understand the sentence without knowing the grammar. Japanese uses hiragana for particles (は, が, を, に), verb and adjectival conjugations, and grammatical structures that do not exist in Chinese. A sentence like 食べられなかった (I couldn't eat) contains only one kanji (食) and everything else and grammar in hiragana.
So, Can a Chinese Man Read Japanese?
The honest answer, in percentages:
- Understanding the general meaning of a sign or title: yes, about 50-70% of the meaning
- Reading a newspaper article: maybe 30-40%, with many grammatical holes
- Follow a written conversation: no, the grammar is completely different
- Understanding a novel: absolutely not without studying Japanese
- Advantage for studying Japanese: huge for meanings, but the readings must be learned from scratch
In summary: knowing Chinese is a huge advantage for memorizing the meanings of kanji, but it is not a shortcut to Japanese. Readings, grammar and many specific meanings must be learned from scratch.
And Can a Japanese Read Chinese?
Surprisingly, a Japanese person does a little better with written Chinese, especially with traditional Chinese (used in Taiwan and Hong Kong). Japanese kanji are closer to traditional characters. But even here, without studying Chinese, understanding stops at general concepts. Chinese grammar (SVO order, tones, classifiers) is completely different.
Do I learn Kanji or Hanzi First?
If you want to study both languages, here's some practical advice: choose the one that interests you most and start from there. The basic characters you learn in one language will give you an advantage in the other, especially for meanings. But don't fool yourself into thinking that studying one is the same as studying the other — they are two separate paths with a common basis.
If Japanese is your focus, Kanjidon teaches you kanji with the correct Japanese readings (on'yomi and kun'yomi), examples in context, and mnemonics that help you distinguish Japanese from Chinese meanings. With adaptive quizzes, you can quickly find out if you're confusing a false friend — better to find out in the app than at a restaurant in Japan.
Whichever language you choose, the first step is the same: learn the basic characters. The first 100-200 are largely shared between the two languages. Get started today and you'll have a leg up both ways.