# 思

| 思 | U+601D, &#24605; CJK UNIFIED IDEOGRAPH-601D |
| ← 怜 [U+601C] | CJK Unified Ideographs | 怞 → [U+601E] |

## Translingual
### Han character

思 (Kangxi radical 61, 心+5, 9 strokes, cangjie input 田心 (WP), four-corner 6033$_0$, composition ⿱田心)

#### Derived characters

* 顋(𱂲), 惫, 崽, 葸, 罳, 䰄, 㢜, 慮
* 偲, 媤, 愢, 揌, 㴓, 楒, 毸, 禗, 腮, 䞏, 㥸, 緦(缌), 勰, 䚡, 諰(𫍰), 鍶(锶), 颸(飔), 騦, 鰓(鳃)
* 𭓑, 𮱽, 𤟧, 𨺯, 𱞥, 𪮏, 𱢔, 𤋘, 𫀼, 𥻏, 𦖻, 𬜉, 𦩭, 𧍤, 𧗂, 𨡾, 𪕳
* 𨜐, 𦖷, 𢣢, 𪃄, 𭟜, 𠅤, 𠖓, 𢛥, 𢞨, 𢞰, 𥯨, 𦋮, 𢠞, 𦻇, 𤸛, 𭞐
* 𤄦, 𭳩, 𩟳, 𥎙

#### References

* Kangxi Dictionary: page 381, character 4
* Dai Kanwa Jiten: character 10462
* Dae Jaweon: page 709, character 7
* Hanyu Da Zidian (first edition): volume 4, page 2280, character 4
* Unihan data for U+601D

## Chinese
### Glyph origin

Historical forms of the character 思 :
| Shuowen Jiezi (compiled in Han) | Liushutong (compiled in Ming) |
| Small seal script | Transcribed ancient scripts |
| | Old Chinese |
| 崽 | *ʔslɯːʔ, *srɯː, *srɯː |
| 偲 | *sn̥ʰɯː, *snɯ |
| 腮 | *snɯː |
| 鰓 | *snɯː |
| 揌 | *snɯː |
| 顋 | *snɯː |
| 愢 | *snɯː |
| 毢 | *snɯː |
| 諰 | *srɯː, *snɯʔ |
| 細 | *snɯːls |
| 思 | *snɯ, *snɯs |
| 緦 | *snɯ |
| 罳 | *snɯ |
| 禗 | *snɯ |
| 楒 | *snɯ |
| 葸 | *snɯʔ |
| 恖 | *snɯ |
| 颸 | *sʰrɯ |
| 囟 | *snɯns |
| 顖 | *sniŋs |
| 毸 | *snɯː |
Original form was 恖 (OC *snɯ), considered by Shuowen to be a phono-semantic compound (形聲 / 形声, OC *snɯ, *snɯs): phonetic 囟 (OC *snɯns) + semantic 心 (“heart”). It may also be a ideogrammic compound (會意 / 会意): 囟 (“fontanel”) + 心 (“heart”).
囟 started to corrupt into the unrelated 田 as early as the silk script.

### Pronunciation 1

* Mandarin
    (Standard)
       (Pinyin): sī (si$^1$)
       (Zhuyin): ㄙ
    (Chengdu, Sichuanese Pinyin): si$^1$
    (Dungan, Cyrillic and Wiktionary): сы (sɨ, I)
* Cantonese
    (Guangzhou–Hong Kong, Jyutping): si$^1$
    (Taishan, Wiktionary): lhu$^1$
* Gan (Wiktionary): si$^1$
* Hakka
    (Sixian, PFS): sṳ̂ / sî
    (Meixian, Guangdong): si$^1$
* Jin (Wiktionary): si$^1$
* Eastern Min (BUC): sṳ̆
* Puxian Min (Pouseng Ping'ing): so$^1$
* Southern Min
    (Hokkien, POJ): su / sir / si
    (Teochew, Peng'im): se$^1$
* Wu (Shanghai, Wugniu): $^1$sy
* Xiang (Changsha, Wiktionary): sr$^1$
* Mandarin
** (Standard Chinese)
*** Hanyu Pinyin: sī
*** Zhuyin: ㄙ
*** Tongyong Pinyin: sih
*** Wade–Giles: ssŭ$^1$
*** Yale: sz̄
*** Gwoyeu Romatzyh: sy
*** Palladius: сы (sy)
*** Sinological IPA : /sz̩⁵⁵/
** (Chengdu)
*** Sichuanese Pinyin: si$^1$
*** Scuanxua Ladinxua Xin Wenz: s
*** Sinological IPA : /sz̩⁵⁵/
** (Dungan)
*** Cyrillic and Wiktionary: сы (sɨ, I)
*** Sinological IPA : /sz̩²⁴/
    (Note: Dungan pronunciation is currently experimental and may be inaccurate.)
* Cantonese
** (Standard Cantonese, Guangzhou–Hong Kong)
*** Jyutping: si$^1$
*** Yale: sī
*** Cantonese Pinyin: si$^1$
*** Guangdong Romanization: xi$^1$
*** Sinological IPA : /siː⁵⁵/
** (Taishanese, Taicheng)
*** Wiktionary: lhu$^1$
*** Sinological IPA : /ɬu³³/
* Gan
** (Nanchang)
*** Wiktionary: si$^1$
*** Sinological IPA : /sz̩⁴²/
* Hakka
** (Sixian, incl. Miaoli and Neipu)
*** Pha̍k-fa-sṳ: sṳ̂ / sî
*** Hakka Romanization System: sii$^ˊ$ / xi$^ˊ$
*** Hagfa Pinyim: si$^1$ / xi$^1$
*** Sinological IPA: /sɨ²⁴/, /si²⁴/
** (Meixian)
*** Guangdong: si$^1$
*** Sinological IPA: /sz̩⁴⁴/
* Jin
** (Taiyuan)
*** Wiktionary: si$^1$
*** Sinological IPA (old-style): /sz̩¹¹/
* Eastern Min
** (Fuzhou)
*** Bàng-uâ-cê: sṳ̆
*** Sinological IPA : /sy⁵⁵/
* Puxian Min
** (Putian)
*** Pouseng Ping'ing: so$^1$
*** Báⁿ-uā-ci̍: seo
*** Sinological IPA : /ɬo⁵³³/
** (Xianyou)
*** Pouseng Ping'ing: so$^1$
*** Sinological IPA : /ɬɵ⁵³³/
* Southern Min
** (Hokkien: Xiamen, Zhangzhou, General Taiwanese)
*** Pe̍h-ōe-jī: su
*** Tâi-lô: su
*** Phofsit Daibuun: sw
*** IPA (Xiamen, Zhangzhou, Taipei, Kaohsiung): /su⁴⁴/
** (Hokkien: Quanzhou)
*** Pe̍h-ōe-jī: sir
*** Tâi-lô: sir
*** IPA (Quanzhou): /sɯ³³/
** (Hokkien: Xiamen, Quanzhou, Zhangzhou, Jinjiang, General Taiwanese)
*** Pe̍h-ōe-jī: si
*** Tâi-lô: si
*** Phofsit Daibuun: sy
*** IPA (Xiamen, Zhangzhou, Taipei, Kaohsiung): /si⁴⁴/
*** IPA (Quanzhou, Jinjiang): /si³³/
* su/sir - literary;
* si - vernacular.
* Middle Chinese: si
Rime :
| Character | 思 |
| Reading # | 1/2 |
| Initial (聲) | 心 (16) |
| Final (韻) | 之 (19) |
| Tone (調) | Level (Ø) |
| Openness (開合) | Open |
| Division (等) | III |
| Fanqie | 息兹切 |
| Baxter | si |
| Reconstructions ||
| Zhengzhang Shangfang | /sɨ/ |
| Pan Wuyun | /sɨ/ |
| Shao Rongfen | /sie/ |
| Edwin Pulleyblank | /sɨ/ |
| Li Rong | /siə/ |
| Wang Li | /sĭə/ |
| Bernhard Karlgren | /si/ |
| Expected Mandarin Reflex | sī |
| Expected Cantonese Reflex | si$^1$ |
* Old Chinese
    (Baxter–Sagart): /*[s]ə/
    (Zhengzhang): /*snɯ/
Baxter–Sagart system 1.1 (2014) :
| Character | 思 |
| Reading # | 1/1 |
| Modern Beijing (Pinyin) | sī |
| Middle Chinese | ‹ si › |
| Old Chinese | /*[s]ə/ |
| English | think |
| Notes for Old Chinese notations in the Baxter–Sagart system: * Parentheses "" indicate uncertain presence; * Square brackets "" indicate uncertain identity, e.g. *[t] as coda may in fact be *-t or *-p; * Angle brackets "<>" indicate infix; * Hyphen "-" indicates morpheme boundary; * Period "." indicates syllable boundary. ||
Zhengzhang system (2003) :
| Character | 思 |
| Reading # | 1/2 |
| No. | 13835 |
| Phonetic component | 囟 |
| Rime group | 之 |
| Rime subdivision | 0 |
| Corresponding MC rime | 思 |
| Old Chinese | /*snɯ/ |

#### Definitions

思
* (literary, or in compounds) to think; to cogitate
    沉思 ― chénsī ― to ponder; to contemplate
    From: The Analects of Confucius, c. 475 – 221 BCE, translated based on James Legge's version
    Zǐ yuē: “Xué ér bù sī zé wǎng, sī ér bù xué zé dài.” [Pinyin]
    The Master said, "Learning without thought is labor lost; thought without learning is perilous."
* (literary, or in compounds) to miss; to yearn for
    思鄉／思乡 ― sīxiāng ― to be homesick
* (literary, or in compounds) to hope; to wish
* (literary, or in compounds) feeling; mood
* (literary, or in compounds) thought; thinking
    文思 ― wénsī ― thread of ideas in writing
* (obsolete) to lament; to grieve for
* (obsolete) meaningless sentence-initial particle
* (obsolete) meaningless sentence-medial particle
* (obsolete) sentence-final interjectional particle
* a surname

##### Synonyms

* (to think):
* 冥思 (míngsī)
* 冥想 (míngxiǎng)
* 品味 (pǐnwèi)
* 尋味 / 寻味 (xúnwèi)
* 尋思 / 寻思
* 念 (niàn)
* 思想 (sīxiǎng)
* 思慮 / 思虑 (sīlǜ)
* 思索 (sīsuǒ)
* 思維 / 思维 (sīwéi)
* 思考 (sīkǎo)
* 思裁 (si$^1$ cai$^2$) (Sichuanese)
* 思量 (sīliáng)
* 慎思 (shènsī)
* 掂掇 (diānduo) (colloquial)
* 推敲 (tuīqiāo)
* 掂量 (diānliáng)
* 揣摩 (chuǎimó)
* 斟酌 (zhēnzhuó) (figuratively)
* 沉思 (chénsī)
* 深思 (shēnsī)
* 照顧 / 照顾 (zhàogù)
* 玩味 (wánwèi)
* 玩弄 (Classical Chinese)
* 琢磨 (zuómo)
* 算計 / 算计 (suànjì)
* 考慮 / 考虑 (kǎolǜ)
* 苦思 (kǔsī)
* 著想 / 着想 (zhuóxiǎng)
* 計算 / 计算 (jìsuàn)
* 計較 / 计较
* 設想 / 设想 (shèxiǎng)
* 顧全 / 顾全 (gùquán)
* 顧及 / 顾及 (gùjí)
* (to miss):
* 念想 (niànxiǎng)
* 思念 (sīniàn)
* 思慕 (sīmù)
* 思量 (sīliáng) (literary)
* 想念 (xiǎngniàn)
* 感想 (gǎnxiǎng) (literary)
* 憶著 / 忆着 (Xiamen Hokkien, Quanzhou Hokkien)
* 懷 / 怀 (huái) (literary)
* 懷念 / 怀念 (huáiniàn)
* 懷想 / 怀想 (huáixiǎng)
* 相思 (xiāngsī)
* 眷念 (juànniàn) (formal)
* 眷戀 / 眷恋 (juànliàn) (formal)
* (to hope):
* 企待 (qǐdài) (literary)
* 企望 (qǐwàng)
* 企盼 (qǐpàn)
* 冀望 (jìwàng) (literary)
* 向望 (ǹg-bāng) (Hokkien)
* 夢想 / 梦想 (mèngxiǎng)
* 寄望 (jìwàng)
* 巴望 (bāwàng) (regional)
* 希冀 (xījì) (literary)
* 希望 (xīwàng)
* 幸 (xìng) (literary)
* 引領 / 引领 (yǐnlǐng) (literary)
* 想望 (xion$^2$ von$^3$) (Jin)
* 承望 (chéngwàng)
* 指望 (zhǐwàng)
* 期冀 (qījì) (literary)
* 期待 (qīdài)
* 期望 (qīwàng)
* 渴望 (kěwàng)
* 盼 (pàn)
* 盼望 (pànwàng)
* 願 / 愿 (yuàn)
* 願意 / 愿意 (yuànyì)
* 鵠望 / 鹄望 (húwàng) (literary)
* (feeling):
* 心境 (xīnjìng)
* 心思 (xīnsī)
* 心情 (xīnqíng)
* 心意 (xīnyì)
* 心曲 (xīnqū) (literary)
* 心神 (xīnshén)
* 心緒 / 心绪 (xīnxù)
* 思緒 / 思绪 (sīxù)
* 情懷 / 情怀 (qínghuái)
* 情緒 / 情绪 (qíngxù)
* 懷 / 怀 (huái) (figurative)
* 腸 / 肠 (cháng) (figurative)
* (thought): 思路 (sīlù), 思緒／思绪 (sīxù)

#### Compounds

* 上思 (Shàngsī)
* 三思
* 三思而行
* 三思臺 / 三思台
* 不三思
* 不假思索 (bùjiǎsīsuǒ)
* 不加思索 (bùjiāsīsuǒ)
* 不可思議 / 不可思议 (bùkěsīyì)
* 不思 (bùsī)
* 不思進取 / 不思进取 (bùsījìnqǔ)
* 不犯尋思 / 不犯寻思
* 中心思想 (zhōngxīn sīxiǎng)
* 九思
* 亟思
* 俯思
* 八斗陳思
* 冥思 (míngsī)
* 冥思苦想 (míngsīkǔxiǎng)
* 冥思苦索 (míngsīkǔsuǒ)
* 凝思 (níngsī)
* 前思後想 / 前思后想
* 勉思
* 動人遐思 / 动人遐思
* 勞心焦思 / 劳心焦思
* 勞身焦思 / 劳身焦思
* 匪夷所思 (fěiyísuǒsī)
* 千思萬想 / 千思万想
* 反思 (fǎnsī)
* 反覆思維 / 反覆思维
* 周情孔思
* 哀思 (āisī)
* 單思病 / 单思病
* 單相思 / 单相思 (dānxiāngsī)
* 回思
* 土思
* 夜思
* 大費神思 / 大费神思
* 好學深思 / 好学深思
* 子思
* 孝思
* 安必思危
* 寒泉之思
* 封建思想
* 專精覃思 / 专精覃思
* 尋思 / 寻思
* 導向思考 / 导向思考
* 居安思危 (jū'ānsīwēi)
* 居高思危
* 巧思 (qiǎosī)
* 左思右想 (zuǒsīyòuxiǎng)
* 席夢思 / 席梦思 (xímèngsī)
* 幽思 (yōusī)
* 引人遐思
* 得寸思尺
* 復思 / 复思
* 心思 (xīnsī)
* 忖前思後 / 忖前思后
* 忒敬思
* 思不出位
* 思凡
* 思前想後 / 思前想后 (sīqiánxiǎnghòu)
* 思前算後 / 思前算后
* 思力 (sīlì)
* 思勞 / 思劳
* 思古幽情
* 思如泉湧 / 思如泉涌
* 思如湧泉 / 思如涌泉
* 思婦 / 思妇
* 思存
* 思忖 (sīcǔn)
* 思念 (sīniàn)
* 怨思
* 思惟 (sīwéi)
* 思想 (sīxiǎng)
* 思想史 (sīxiǎngshǐ)
* 思想家 (sīxiǎngjiā)
* 思想庫 / 思想库 (sīxiǎngkù)
* 思惹情牽 / 思惹情牵
* 思想戰 / 思想战
* 思慮 / 思虑 (sīlǜ)
* 思慕 (sīmù)
* 思戀 / 思恋
* 思文
* 思春 (sīchūn)
* 怪沒意思 / 怪没意思
* 思深憂遠 / 思深忧远
* 思深語近 / 思深语近
* 思渴
* 思潮 (sīcháo)
* 思無邪 / 思无邪
* 思省
* 思索 (sīsuǒ)
* 思維 / 思维 (sīwéi)
* 思緒 / 思绪 (sīxù)
* 思考 (sīkǎo)
* 思致
* 思舊 / 思旧
* 思若湧泉 / 思若涌泉
* 思謀 / 思谋 (sīmóu)
* 思議 / 思议 (sīyì)
* 思賢如渴 / 思贤如渴
* 思路 (sīlù)
* 思辨 (sībiàn)
* 思辯 / 思辩 (sībiàn)
* 思過 / 思过 (sīguò)
* 思過半 / 思过半
* 思鄉 / 思乡 (sīxiāng)
* 思鄉病 / 思乡病
* 思量 (sīliáng)
* 思高本 (sīgāoběn)
* 思鱸 / 思鲈
* 思齊 / 思齐
* 悠思
* 情思 (qíngsī)
* 悲思
* 愁思 (chóusī)
* 意思主義 / 意思主义
* 意思能力
* 意思表示 (yìsi biǎoshì)
* 意意思思
* 慎思 (shènsī)
* 慎思明辨
* 慧心巧思
* 慧思
* 憂思 / 忧思 (yōusī)
* 憂深思遠 / 忧深思远
* 懷新思舊 / 怀新思旧
* 成吉思汗 (Chéngjísīhán)
* 戰略思想 / 战略思想
* 所思
* 才思 (cáisī)
* 才思敏捷 (cáisīmǐnjié)
* 挖空心思 (wākōngxīnsī)
* 搆思 / 构思 (gòusī)
* 敬思
* 文思 (wénsī)
* 文思泉湧 / 文思泉涌
* 旅思
* 春思
* 暮想朝思
* 有所思
* 朝思夕想
* 朝思夕計 / 朝思夕计
* 朝思暮想 (zhāosīmùxiǎng)
* 李思訓碑 / 李思训碑
* 構思 / 构思 (gòusī)
* 樂不思蜀 / 乐不思蜀 (lèbùsīshǔ)
* 止渴思梅
* 正思惟
* 殫思極慮 / 殚思极虑
* 殫精極思 / 殚精极思
* 殫精畢思 / 殚精毕思
* 毫不思量
* 沒三思 / 没三思
* 沉思 (chénsī)
* 深思 (shēnsī)
* 淵思寂慮 / 渊思寂虑
* 深思極慮 / 深思极虑
* 深思熟慮 / 深思熟虑 (shēnsīshúlǜ)
* 深思遠慮 / 深思远虑
* 渭陽之思 / 渭阳之思
* 澄思寂慮 / 澄思寂虑
* 潛神默思 / 潜神默思
* 火不思 (huǒbùsī)
* 焦心勞思 / 焦心劳思
* 無思無慮 / 无思无虑
* 無慮無思 / 无虑无思
* 熟思 (shúsī)
* 熟讀精思 / 熟读精思
* 用盡心思 / 用尽心思
* 病相思 (bìngxiāngsī)
* 痛定思痛 (tòngdìngsītòng)
* 白費心思 / 白费心思 (báifèixīnsī)
* 百思不解 (bǎisībùjiě)
* 百思莫解
* 目盼心思
* 省思 (xǐngsī)
* 相思 (xiāngsī)
* 相思債 / 相思债
* 相思卦
* 相思套
* 相思子
* 相思木
* 相思樹 / 相思树 (xiāngsīshù)
* 相思病 (xiāngsībìng)
* 相思草
* 相思豆
* 相思鳥 / 相思鸟
* 眠思夢想 / 眠思梦想
* 睹物思人 (dǔwùsīrén)
* 研精苦思
* 研精覃思
* 神仙思想
* 神思 (shénsī)
* 神思恍惚
* 秋思
* 穆思林
* 空勞神思 / 空劳神思
* 窮則思變 / 穷则思变
* 竭盡心思 / 竭尽心思
* 綺思 / 绮思 (qǐsī)
* 縈思 / 萦思
* 繆思女神 / 缪思女神
* 翹思 / 翘思
* 老莊思想 / 老庄思想
* 耄思
* 耽思
* 肚裡尋思 / 肚里寻思
* 胡思
* 胡思亂想 / 胡思乱想 (húsīluànxiǎng)
* 胡思亂量 / 胡思乱量
* 胠沙思水
* 腸枯思竭 / 肠枯思竭
* 致思
* 色思溫 / 色思温
* 花心思
* 苦思 (kǔsī)
* 苦思惡想 / 苦思恶想
* 茶思飯想 / 茶思饭想
* 茶飯不思 / 茶饭不思
* 藻思
* 處安思危 / 处安思危 (chǔ'ānsīwēi)
* 行思
* 行思坐想
* 行思坐憶 / 行思坐忆
* 行成於思 / 行成于思
* 行無越思 / 行无越思
* 覃思 (tánsī)
* 見利思義 / 见利思义
* 見德思齊 / 见德思齐
* 見異思遷 / 见异思迁 (jiànyìsīqiān)
* 見賢思齊 / 见贤思齐 (jiànxiánsīqí)
* 見鞍思馬 / 见鞍思马
* 費思量 / 费思量
* 近思錄 / 近思录
* 逆向思考
* 迷思 (mísī)
* 追思 (zhuīsī)
* 退思補過 / 退思补过
* 運思 / 运思 (yùnsī)
* 遐思 (xiásī)
* 遠慮深思 / 远虑深思
* 遷思迴慮 / 迁思回虑
* 遺風餘思 / 遗风余思
* 鄉思 / 乡思 (xiāngsī)
* 長思 / 长思
* 長相思 / 长相思
* 閉目沉思 / 闭目沉思
* 閉門思過 / 闭门思过 (bìménsīguò)
* 閉閣思過 / 闭阁思过
* 陳思王 / 陈思王
* 集思廣益 / 集思广益 (jísīguǎngyì)
* 霜露之思
* 靜極思動 / 静极思动
* 面壁思過 / 面壁思过 (miànbìsīguò)
* 顧名思義 / 顾名思义 (gùmíngsīyì)
* 顧思 / 顾思
* 風情月思 / 风情月思
* 風木之思 / 风木之思
* 飲水思源 / 饮水思源 (yǐnshuǐsīyuán)
* 首丘之思
* 體大思精 / 体大思精
* 默思
* 鼠思

### Pronunciation 2

* Mandarin
    (Standard)
       (Pinyin): sī, sì (si$^1$, si$^4$)
       (Zhuyin): ㄙ, ㄙˋ
    (Chengdu, Sichuanese Pinyin): si$^1$
* Cantonese (Jyutping): si$^3$ / si$^1$
* Hakka (Sixian, PFS): sṳ
* Eastern Min (BUC): sé̤ṳ
* Puxian Min (Pouseng Ping'ing): so$^4$
* Southern Min
    (Hokkien, POJ): sù / sìr / sì
    (Teochew, Peng'im): se$^1$ / se$^3$
* Mandarin
** (Standard Chinese)
*** Hanyu Pinyin: sī
*** Zhuyin: ㄙ
*** Tongyong Pinyin: sih
*** Wade–Giles: ssŭ$^1$
*** Yale: sz̄
*** Gwoyeu Romatzyh: sy
*** Palladius: сы (sy)
*** Sinological IPA : /sz̩⁵⁵/
** (Standard Chinese, literary variant)
*** Hanyu Pinyin: sì
*** Zhuyin: ㄙˋ
*** Tongyong Pinyin: sìh
*** Wade–Giles: ssŭ$^4$
*** Yale: sz̀
*** Gwoyeu Romatzyh: syh
*** Palladius: сы (sy)
*** Sinological IPA : /sz̩⁵¹/
** (Chengdu)
*** Sichuanese Pinyin: si$^1$
*** Scuanxua Ladinxua Xin Wenz: s
*** Sinological IPA : /sz̩⁵⁵/
* Cantonese
** (Standard Cantonese, Guangzhou–Hong Kong)
*** Jyutping: si$^3$ / si$^1$
*** Yale: si / sī
*** Cantonese Pinyin: si$^3$ / si$^1$
*** Guangdong Romanization: xi$^3$ / xi$^1$
*** Sinological IPA : /siː³³/, /siː⁵⁵/
* Hakka
** (Sixian, incl. Miaoli and Neipu)
*** Pha̍k-fa-sṳ: sṳ
*** Hakka Romanization System: sii
*** Hagfa Pinyim: si$^4$
*** Sinological IPA: /sɨ⁵⁵/
* Eastern Min
** (Fuzhou)
*** Bàng-uâ-cê: sé̤ṳ
*** Sinological IPA : /søy²¹³/
* Puxian Min
** (Putian)
*** Pouseng Ping'ing: so$^4$
*** Báⁿ-uā-ci̍: seo̍
*** Sinological IPA : /ɬo⁴²/
** (Xianyou)
*** Pouseng Ping'ing: so$^4$
*** Sinological IPA : /ɬɵ⁴²/
* Southern Min
** (Hokkien: Xiamen, Zhangzhou, General Taiwanese)
*** Pe̍h-ōe-jī: sù
*** Tâi-lô: sù
*** Phofsit Daibuun: sux
*** IPA (Taipei): /su¹¹/
*** IPA (Xiamen, Zhangzhou, Kaohsiung): /su²¹/
** (Hokkien: Quanzhou)
*** Pe̍h-ōe-jī: sìr
*** Tâi-lô: sìr
*** IPA (Quanzhou): /sɯ⁴¹/
** (Hokkien: Jinjiang, Philippines)
*** Pe̍h-ōe-jī: sì
*** Tâi-lô: sì
*** Phofsit Daibuun: six
*** IPA (Jinjiang, Philippines): /si⁴¹/
** (Teochew)
*** Peng'im: se$^1$ / se$^3$
*** Pe̍h-ōe-jī-like: sṳ / sṳ̀
*** Sinological IPA : /sɯ³³/, /sɯ²¹³/
* Middle Chinese: siH
Rime :
| Character | 思 |
| Reading # | 2/2 |
| Initial (聲) | 心 (16) |
| Final (韻) | 之 (19) |
| Tone (調) | Departing (H) |
| Openness (開合) | Open |
| Division (等) | III |
| Fanqie | 相吏切 |
| Baxter | siH |
| Reconstructions ||
| Zhengzhang Shangfang | /sɨ$^H$/ |
| Pan Wuyun | /sɨ$^H$/ |
| Shao Rongfen | /sie$^H$/ |
| Edwin Pulleyblank | /sɨ$^H$/ |
| Li Rong | /siə$^H$/ |
| Wang Li | /sĭə$^H$/ |
| Bernhard Karlgren | /si$^H$/ |
| Expected Mandarin Reflex | sì |
| Expected Cantonese Reflex | si$^3$ |
* Old Chinese
    (Zhengzhang): /*snɯs/
Zhengzhang system (2003) :
| Character | 思 |
| Reading # | 2/2 |
| No. | 13843 |
| Phonetic component | 囟 |
| Rime group | 之 |
| Rime subdivision | 0 |
| Corresponding MC rime | 笥 |
| Old Chinese | /*snɯs/ |

#### Definitions

思
* (obsolete on its own in Standard Chinese) thought; feeling; mood

#### Compounds

* 不好意思 (bùhǎoyìsi)
* 好意思
* 意思

### Pronunciation 3

* Mandarin
    (Pinyin): sāi (sai$^1$)
    (Zhuyin): ㄙㄞ
* Cantonese (Jyutping): soi$^1$
* Mandarin
** (Standard Chinese)
*** Hanyu Pinyin: sāi
*** Zhuyin: ㄙㄞ
*** Tongyong Pinyin: sai
*** Wade–Giles: sai$^1$
*** Yale: sāi
*** Gwoyeu Romatzyh: sai
*** Palladius: сай (saj)
*** Sinological IPA : /saɪ̯⁵⁵/
* Cantonese
** (Standard Cantonese, Guangzhou–Hong Kong)
*** Jyutping: soi$^1$
*** Yale: sōi
*** Cantonese Pinyin: soi$^1$
*** Guangdong Romanization: soi$^1$
*** Sinological IPA : /sɔːi̯⁵⁵/

#### Definitions

思
* (obsolete on its own in Standard Chinese) Alternative form of 䰄 (“heavily bearded”)

#### Compounds

* 于思
* 䯱思

### References

* “思”, in 漢語多功能字庫 (Multi-function Chinese Character Database)‎, 香港中文大學 (the Chinese University of Hong Kong), 2014–
* 李如龙 [Li, Ru-long], 刘福铸 [Liu, Fu-zhu], 吴华英 [Wu, Hua-ying], 黄国城 [Huang, Guo-cheng] (2019) “思 (意～)”, in 莆仙方言调查报告 [Investigation Report on Puxian Dialect] (overall work in Mandarin and Puxian Min), Xiamen University Press, →ISBN, page 164.

## Japanese
### Kanji

(Second grade kyōiku kanji)
* think

#### Readings

* Go-on: し (shi, Jōyō)
* Kan-on: し (shi, Jōyō)
* Kun: おもう (omou, 思う, Jōyō)、おもい (omoi, 思い)、おぼしい (oboshii, 思しい)

#### Compounds

* 思(し)案(あん) (shian)
* 思(し)惟(い) (shī)
* 思(し)考(こう) (shikō)
* 思(し)索(さく) (shisaku)
* 思(し)春(しゅん)期(き) (shishunki, “adolescence”)
* 思(し)想(そう) (shisō)
* 思(し)慕(ぼ) (shibo)
* 思(し)慮(りょ) (shiryo, “prudence, discretion”)
* 思(し)料(りょう), 思(し)量(りょう) (shiryō)

## Korean
### Etymology 1

From Middle Chinese 思 (MC si).
Historical Readings :
| Dongguk Jeongun Reading |||
| Dongguk Jeongun, 1448 | Recorded as Middle Korean ᄉᆞᆼ (Yale: sò$^?$) in Dongguk Jeongun (東國正韻 / 동국정운), 1448. | Recorded as Middle Korean ᄉᆞᆼ (Yale: sò$^?$) in Dongguk Jeongun (東國正韻 / 동국정운), 1448. |
| Middle Korean |||
| Text | Eumhun | Eumhun |
| Text | Gloss (hun) | Reading |
| Hunmong Jahoe, 1527 | ᄉᆡᆼ각 ᄉᆞ | Recorded as Middle Korean ᄉᆞ (so) (Yale: so) in Sinjeung Yuhap (新增類合 / 신증유합), 1576. |
| Gwangju Cheonjamun, 1575 | ᄉᆞ량 ᄉᆞ | Recorded as Middle Korean ᄉᆞ (so) (Yale: so) in Gwangju Cheonjamun (光州千字文 / 광주천자문), 1575. |
| Early Modern Korean |||
| Text | Final (韻) | Reading |
| Samun Seonghwi, 1751 | ᄉᆡᆼ각 ᄉᆞ | Recorded as Early Modern Korean ᄉᆞ (Yale: so) in Juhae Cheonjamun (註解千字文 / 주해천자문), 1804. |

#### Pronunciation

* (to think; etc.):
** (SK Standard/Seoul) IPA: [sʰa̠]
** Phonetic hangul: [사]
* (in 사상 (思想, sasang, “thought”)):
** (SK Standard/Seoul) IPA: [sʰa̠(ː)]
** Phonetic hangul: [사(ː)]
*** Though still prescribed in Standard Korean, most speakers in both Koreas no longer distinguish vowel length.

#### Hanja

Wikisource 思 (eumhun 생각할 사 (saenggakhal sa))
* hanja form of 사 (“to think”)
* hanja form of 사 (“thought; thinking; idea”)
* hanja form of 사 (“to miss; to yearn for”)

#### Compounds

* 고사 (苦思, gosa)
* 노사 (勞思, nosa)
* 사고 (思考, sago)
* 사념 (思念, sanyeom)
* 사량 (思量, saryang)
* 사려 (思慮, saryeo)
* 사료 (思料, saryo)
* 사모 (思慕, samo)
* 사변 (思辨, sabyeon)
* 사상 (思想, sasang)
* 사색 (思索, sasaek)
* 사유 (思惟, sayu)
* 사조 (思潮, sajo)
* 사춘기 (思春期, sachun'gi)
* 심사 (深思, simsa)

### Etymology 2

From Middle Chinese 思 (MC siH).
Historical Readings :
| Dongguk Jeongun Reading |||
| Dongguk Jeongun, 1448 | Recorded as Middle Korean ᄉᆞᆼ〮 (Yale: só$^?$) in Dongguk Jeongun (東國正韻 / 동국정운), 1448. | Recorded as Middle Korean ᄉᆞᆼ〮 (Yale: só$^?$) in Dongguk Jeongun (東國正韻 / 동국정운), 1448. |
| Middle Korean |||
| Text | Eumhun | Eumhun |
| Text | Gloss (hun) | Reading |
| Hunmong Jahoe, 1527 | ᄠᅳᆮ ᄉᆞ | Recorded as Middle Korean ᄉᆞ (so) (Yale: so) in Sinjeung Yuhap (新增類合 / 신증유합), 1576. |
| Early Modern Korean |||
| Text | Final (韻) | Reading |
| Samun Seonghwi, 1751 | 의ᄉᆞ ᄉᆞ | Recorded as Early Modern Korean ᄉᆞ (Yale: so) in Juhae Cheonjamun (註解千字文 / 주해천자문), 1804. |
| ↑ 去聲 |||

#### Pronunciation

* (SK Standard/Seoul) IPA: [sʰa̠]
* Phonetic hangul: [사]

#### Hanja

思 (eumhun 생각 사 (saenggak sa))
* hanja form of 사 (“thought”)

#### Compounds

* 의사 (意思, uisa)

### Etymology 3

Related to Middle Chinese 䰄 (MC soj).

#### Hanja

思 (eumhun 수염이 많을 새 (suyeom-i maneul sae))
* (literary Chinese) Alternative form of 䰄 (“hanja form of 새 (“heavily bearded”)”)

### References

* 국제퇴계학회 대구경북지부 (國際退溪學會 大邱慶北支部) (2007). Digital Hanja Dictionary, 전자사전／電子字典.

## Vietnamese
### Han character

思: Hán Nôm readings: tư, tơ, tứ
* This term needs a translation to English. Please help out and add a translation, then remove the text {{rfdef}}.