Identical Characters
Hundreds of kanji are identical or nearly identical to characters you learned in Mandarin: same shape, same core meaning, often the same compound words built from them. While other Japanese learners stare at 森 and wonder if it is “forest” or “tree pile,” you read it instantly as 森林 (sēnlín) in your head and move on.
This chapter groups the most useful overlap by category. For every character, we show the Japanese on’yomi and kun’yomi, the Mandarin pinyin, and the Sound Bridge (how the on’yomi connects to pronunciation you already know).
When you see a kanji you recognize from Chinese, say the Mandarin reading aloud first, then swap to on’yomi. 山 shān → さん san. 水 shuǐ → すい sui. The meaning carries over; the reading is what you still need to learn.
How to read this page
Section titled “How to read this page”| Column | What it tells you |
|---|---|
| Kanji | The character, often identical to simplified or traditional Chinese |
| Meaning | Core English meaning (matches Chinese in most cases) |
| On’yomi | Chinese-derived reading; use in compounds |
| Kun’yomi | Native Japanese reading; use when kanji stands alone |
| Mandarin | Pinyin you already know |
| Sound Bridge | How on’yomi evolved from Mandarin |
The Sound Bridge pattern repeats everywhere: drop the tone, simplify consonants, swap final -ng for -n, shift vowels slightly. 生 shēng → セイ sei. 国 guó → コク koku. 年 nián → ネン nen. The drift takes a few weeks to feel natural, but after that on’yomi readings become much easier to guess.
Nature 自然
Section titled “Nature 自然”These characters paint the physical world: mountains, rivers, weather. You learned them in grade one. Japan uses the same pictures.
| Kanji | Meaning | On’yomi | Kun’yomi | Mandarin | Sound Bridge |
|---|---|---|---|---|---|
| 山 | mountain | サン (san) | やま (yama) | shān | sh- → s-, add final -n: shān → san |
| 川 | river, stream | セン (sen) | かわ (kawa) | chuān | ch- dropped, -uan → -en: chuān → sen |
| 水 | water | スイ (sui) | みず (mizu) | shuǐ | sh- → s-, -ui preserved: shuǐ → sui |
| 火 | fire | カ (ka) | ひ (hi) | huǒ | h- → k- (voiceless shift), drop -o: huǒ → ka |
| 木 | tree, wood | ボク / モク (boku/moku) | き (ki) | mù | m- preserved, add -oku/-oku ending: mù → moku |
| 花 | flower | カ (ka) | はな (hana) | huā | h- → k-, -ua → -a: huā → ka |
| 海 | sea, ocean | カイ (kai) | うみ (umi) | hǎi | h- → k-, -ai preserved: hǎi → kai |
| 空 | sky, empty | クウ (kū) | そら / あ (sora/a) | kōng | k- preserved, -ong → -ū: kōng → kū |
| 風 | wind | フウ (fū) | かぜ (kaze) | fēng | f- preserved, -eng → -ū: fēng → fū |
| 雨 | rain | ウ (u) | あめ (ame) | yǔ | y- dropped, -ǔ → -u: yǔ → u |
| 雪 | snow | セツ (setsu) | ゆき (yuki) | xuě | x- → s-, -ue → -etsu: xuě → setsu |
| 石 | stone, rock | セキ (seki) | いし (ishi) | shí | sh- → s-, add -ki: shí → seki |
| 森 | forest (dense woods) | シン (shin) | もり (mori) | sēn | s- preserved, -en → -in: sēn → shin |
| 林 | woods, grove | リン (rin) | はやし (hayashi) | lín | l- → r- (common JP shift), -in preserved: lín → rin |
森 and 林 carry the same distinction as in Chinese: 林 is a smaller grove (two 木), 森 is a dense forest (three 木). Japanese compounds follow the same logic: 森林 (しんりん shinrin) = forest, identical to Mandarin 森林 (sēnlín).
Nature kanji usually take kun’yomi when alone (やま, かわ, みず) and on’yomi in compounds (火山 kazan = volcano, 河川 kasen = rivers). If you know the Chinese compound, read with on’yomi: 火山 = huǒshān → カザン kazan.
People & body 人と体
Section titled “People & body 人と体”The human form: body parts and basic people words. Identical to Chinese in both shape and meaning.
| Kanji | Meaning | On’yomi | Kun’yomi | Mandarin | Sound Bridge |
|---|---|---|---|---|---|
| 人 | person, people | ジン / ニン (jin/nin) | ひと (hito) | rén | r- → j-/n-, -en → -in: rén → jin/nin |
| 口 | mouth, opening | コウ (kō) | くち (kuchi) | kǒu | k- preserved, -ou preserved: kǒu → kō |
| 目 | eye | モク / ボク (moku/boku) | め (me) | mù | m- preserved, add -oku: mù → moku |
| 耳 | ear | ジ (ji) | みみ (mimi) | ěr | initial dropped, -er → -i: ěr → ji |
| 手 | hand | シュ (shu) | て (te) | shǒu | sh- preserved, -ou → -u: shǒu → shu |
| 足 | foot, leg; sufficient | ソク (soku) | あし / た (ashi/ta) | zú | z- → s-, add -oku: zú → soku |
| 心 | heart, mind | シン (shin) | こころ (kokoro) | xīn | x- → sh-, -in preserved: xīn → shin |
| 男 | man, male | ダン / ナン (dan/nan) | おとこ (otoko) | nán | n- preserved, -an preserved: nán → dan/nan |
| 女 | woman, female | ジョ / ニョ / ニョウ (jo/nyo/nyō) | おんな (onna) | nǚ | n- → j-/ny-, -ü → -o: nǚ → jo/nyo |
| 子 | child; suffix | シ / ス (shi/su) | こ (ko) | zǐ | z- → sh-/s-, -i preserved: zǐ → shi/su |
Numbers 数字
Section titled “Numbers 数字”The most straightforward category: same shapes, same meanings, predictable sound bridges.
| Kanji | Meaning | On’yomi | Kun’yomi | Mandarin | Sound Bridge |
|---|---|---|---|---|---|
| 一 | one | イチ (ichi) | ひと (hito) | yī | y- → i-, add -chi: yī → ichi |
| 二 | two | ニ (ni) | ふた (futa) | èr | è → ni (vowel shift) |
| 三 | three | サン (san) | み (mi) | sān | s- preserved, -an added: sān → san |
| 四 | four | シ (shi) | よ / よん (yo/yon) | sì | s- → sh-, -i preserved: sì → shi |
| 五 | five | ゴ (go) | いつ (itsu) | wǔ | w- → g-, -u preserved: wǔ → go |
| 六 | six | ロク (roku) | む (mu) | liù | l- → r-, add -oku: liù → roku |
| 七 | seven | シチ (shichi) | なな (nana) | qī | q- → sh-, -i → -ichi: qī → shichi |
| 八 | eight | ハチ (hachi) | や (ya) | bā | b- → h-, add -chi: bā → hachi |
| 九 | nine | キュウ / ク (kyū/ku) | ここの (kokono) | jiǔ | j- → ky-/k-, -iu → -ū: jiǔ → kyū |
| 十 | ten | ジュウ (jū) | とお (tō) | shí | sh- → j-, -i → -ū: shí → jū |
| 百 | hundred | ヒャク (hyaku) | — | bǎi | b- → h-, -ai → -yaku: bǎi → hyaku |
| 千 | thousand | セン (sen) | ち (chi) | qiān | q- → s-, -ian → -en: qiān → sen |
| 万 | ten thousand | マン (man) | よろず (yorozu) | wàn | w- → m-, -an preserved: wàn → man |
Japanese has two counting systems for numbers. On’yomi (イチ、ニ、サン) covers dates, months, and compounds. Kun’yomi (ひとつ、ふたつ、みっつ) covers counting objects. You already know the on’yomi from Mandarin; the kun’yomi counters are the part that still takes practice.
Time 時間
Section titled “Time 時間”Time words are high-frequency and highly transferable. These appear on clocks, schedules, and every calendar in Japan.
| Kanji | Meaning | On’yomi | Kun’yomi | Mandarin | Sound Bridge |
|---|---|---|---|---|---|
| 日 | sun, day | ニチ / ジツ (nichi/jitsu) | ひ / か (hi/ka) | rì | r- → n-/j-, -i preserved: rì → nichi |
| 月 | moon, month | ゲツ / ガツ (getsu/gatsu) | つき (tsuki) | yuè | y- → g-, -ue → -etsu: yuè → getsu |
| 年 | year | ネン (nen) | とし (toshi) | nián | n- preserved, -ian → -en: nián → nen |
| 時 | time, hour | ジ (ji) | とき (toki) | shí | sh- → j-, -i preserved: shí → ji |
| 分 | minute; to divide | フン / ブン (fun/bun) | わ (wa) | fēn | f- preserved, -en → -un: fēn → fun/bun |
| 今 | now, current | コン / キン (kon/kin) | いま (ima) | jīn | j- → k-, -in preserved: jīn → kon/kin |
| 朝 | morning | チョウ (chō) | あさ (asa) | cháo | ch- preserved, -ao → -ō: cháo → chō |
| 夜 | night, evening | ヤ (ya) | よる / よ (yoru/yo) | yè | y- preserved, -e → -a: yè → ya |
Basic concepts 基本概念
Section titled “Basic concepts 基本概念”Direction, size, position: the scaffolding of daily language. These carry over from Chinese with little friction.
| Kanji | Meaning | On’yomi | Kun’yomi | Mandarin | Sound Bridge |
|---|---|---|---|---|---|
| 大 | big, large | ダイ / タイ (dai/tai) | おお (ō) | dà | d- preserved, -a → -ai: dà → dai |
| 小 | small, little | ショウ (shō) | ちい / こ / お (chii/ko/o) | xiǎo | x- → sh-, -ao → -ō: xiǎo → shō |
| 上 | above, up, on | ジョウ / ショウ (jō/shō) | うえ / あ / のぼ (ue/a/nobo) | shàng | sh- → j-/sh-, -ang → -ō: shàng → jō |
| 下 | below, down, under | カ / ゲ (ka/ge) | した / さ / くだ (shita/sa/kuda) | xià | x- → k-/g-, -ia → -a/-e: xià → ka/ge |
| 中 | middle, inside, China | チュウ (chū) | なか (naka) | zhōng | zh- → ch-, -ong → -ū: zhōng → chū |
| 左 | left | サ (sa) | ひだり (hidari) | zuǒ | z- → s-, -uo → -a: zuǒ → sa |
| 右 | right | ウ / ユウ (u/yū) | みぎ (migi) | yòu | y- → u/y-, -ou → -u/ū: yòu → u/yū |
| 前 | front, before | ゼン (zen) | まえ (mae) | qián | q- → z-, -ian → -en: qián → zen |
| 後 | behind, after, later | ゴ / コウ (go/kō) | あと / うし (ato/ushi) | hòu | h- → g-/k-, -ou preserved: hòu → go/kō |
| 新 | new | シン (shin) | あたら / あら / にい (atara/ara/nii) | xīn | x- → sh-, -in preserved: xīn → shin |
| 古 | old, ancient | コ (ko) | ふる (furu) | gǔ | g- → k-, -u preserved: gǔ → ko |
後 (go/kō) in Japanese uses the traditional form with the 彳 radical. Simplified Chinese writes 后 (hòu) for “behind/after,” a different character that merged in simplification. In Japanese, 后 does not exist; always read 後 as the “behind” character you know from traditional Chinese.
Traditional vs simplified: quick reference
Section titled “Traditional vs simplified: quick reference”If you learned simplified Chinese, these identical-meaning characters have different shapes in Japanese:
| Japanese kanji | Simplified CN | Traditional CN | Shared meaning |
|---|---|---|---|
| 後 | 后 | 後 | behind, after |
| 應 | 应 | 應 | should, respond |
| 廣 | 广 | 廣 | wide, broad |
| 舊 | 旧 | 舊 | old (former) |
| 縣 | 县 | 縣 | district |
| 總 | 总 | 總 | total, general |
| 體 | 体 | 體 | body |
| 發 | 发 | 發 | to emit, depart |
| 東 | 东 | 東 | east |
| 車 | 车 | 車 | vehicle |
| 電 | 电 | 電 | electricity |
| 國 | 国 | 國 | country |
| 學 | 学 | 學 | study, learning |
| 會 | 会 | 會 | meeting, association |
Build a personal list of 10–15 characters where simplified and Japanese diverge. Review it once a week. Within a month, 国→國, 电→電, and 学→學 start to feel automatic, the same way they do for traditional-Chinese readers.
Next steps
Section titled “Next steps”This page covers 70+ characters whose meanings you already know. Readings still take work, especially kun’yomi and fused compounds like 今日.
- In compounds, reach for on’yomi. 人口 (じんこう jinkō) = population, like 人口 (rénkǒu).
- Alone, expect kun’yomi. 大きい (おおきい ōkii) = big; the 大 is read as native Japanese, not ダイ.
- When in doubt, try Mandarin first, then adjust pronunciation toward on’yomi.
- Read False Friends before relying on meaning alone. Most identical characters match, but a few diverge sharply.
Pick five characters from one category above and drill their on’yomi and kun’yomi out loud. Then move to the next category.