Meaning
The kanji 朱 (SHU) embodies the vibrant colors of 'vermilion' and 'cinnabar'. Vermilion is a distinct reddish-orange pigment, traditionally derived from the mineral cinnabar (mercuric sulfide). This color is steeped in history and cultural significance, frequently appearing in Japanese shrines, temples, and traditional art. Unlike the more general 'red' (赤, あか), 朱 denotes a very specific, often bright and lustrous, shade of red that has been treasured for centuries.
The kanji 朱 has a fascinating pictographic origin. It combines the radical 木 (ki, moku), meaning 'tree,' with a horizontal stroke. This stroke is thought to depict the heartwood or core of a tree. Ancient people observed that when certain trees were cut, their heartwood revealed a striking reddish hue. This natural phenomenon led to 朱's initial association with a deep, earthy red. Eventually, the character evolved to specifically represent the precious vermilion pigment, emphasizing its strong ties to nature and traditional resources.
With just 6 strokes, 朱 is a Jōyō kanji, meaning it's approved for general use. However, it isn't taught in elementary school grades. Instead, its specialized usage and rich cultural context mean advanced learners, typically around the N1 level, usually encounter it.
Readings
On'yomi (音読み) — Chinese-derived readings
The primary On'yomi reading for 朱 is シュ (SHU). This reading is by far the most common and is used in almost all compound words where 朱 refers to the color vermilion, cinnabar, or related concepts. Its use often evokes a formal and traditional atmosphere, a nod to its origins in Chinese language and culture.
- 朱色 (shuiro) — This is the most direct term for the color vermilion, specifically highlighting the vibrant reddish-orange shade associated with cinnabar. For instance, 鮮やかな朱色の鳥居 (azayakana shuiro no torii) means 'a vibrant vermilion torii gate'.
- 朱肉 (shuniku) — This refers to the vermilion ink pad used for personal seals (hanko or inkan). It's an indispensable item in Japanese daily life, used for officially stamping documents and personal signatures. 重要な書類に朱肉を押す (jūyō na shorui ni shuniku o osu) means 'to stamp the vermilion ink on important documents'.
- 朱書 (shusho) — This literally means 'writing in vermilion ink' or 'red annotations'. Teachers often use it when correcting papers or making important notes in red. For example, 先生が朱書で訂正した (sensei ga shusho de teisei shita) means 'the teacher corrected it with red ink'.
Kun'yomi (訓読み) — Native Japanese readings
The primary Kun'yomi reading for 朱 is あけ (ake). While less common in standalone modern usage compared to its On'yomi, 'ake' frequently appears in traditional, literary, or descriptive settings. It evokes a bright, clear red, often reminiscent of dawn or a vivid, pure color.
- 朱の盃 (ake no sakazuki) — This phrase refers to a vermilion sake cup. It's a more poetic way to describe the color and object, suggesting a refined aesthetic. You might encounter this in classical literature or traditional poetry.
- 朱に染まる (ake ni somaru) — To be dyed or stained vermilion. This expression often describes a landscape or object taking on a bright red hue, such as a sunset or autumn leaves. For example, 夕日で空が朱に染まる (yūhi de sora ga ake ni somaru) means 'the sky is dyed vermilion by the setting sun'.
- 朱の鳥居 (ake no torii) — Similar to 朱色の鳥居, this uses the Kun'yomi 'ake' to describe the vermilion color of a shrine gate, often with a slightly more classical or evocative feel.
Common Words & Compounds
The kanji 朱 appears in numerous culturally rich and significant compound words in Japanese, mainly utilizing its On'yomi, シュ (SHU). These compounds frequently relate to colors, traditional materials, art, and even specific animals or philosophical ideas.
- 朱色 (shuiro) — The most straightforward term for the color vermilion. It's a vivid, bright reddish-orange famously used for torii gates at Shinto shrines, signifying the sacred and warding off evil.
- 朱肉 (shuniku) — A vermilion ink pad, indispensable for stamping personal seals (hanko/inkan) on documents in Japan. Its distinct bright red color serves as a clear mark of authenticity and presence.
- 朱塗 (shunuri) — Refers to objects lacquered in vermilion. Many traditional Japanese crafts, like lacquerware, and architectural elements in temples and shrines, showcase exquisite 朱塗 finishes.
- 朱砂 (shusa) — Cinnabar, the natural mineral (mercuric sulfide) from which the vermilion pigment is traditionally derived. It holds historical significance in both alchemy and traditional art.
- 朱墨 (shusumi) — Vermilion ink stick or red ink. This is used in calligraphy or for drawing, often for corrections or special markings.
- 朱印 (shuin) — A vermilion seal. This term often refers to the red stamps collected in a 御朱印帳 (goshuincho) from temples and shrines, serving as proof of visit and a form of spiritual souvenir.
- 朱筆 (shuhitsu) — A red pen or red brush, also referring to corrections or annotations made in red ink. This is a common sight in academic and professional settings.
- 朱鷺 (toki) — The Crested Ibis. This is a fascinating example of 当て字 (ateji), where 朱 (vermilion) is used for its meaning (referring to the bird's reddish-pink plumage) and combined with 鷺 (sagi, egret) to form 'toki'. It's a majestic and endangered bird, recognized by its distinctive coloration.
- 朱雀 (suzaku) — The Vermilion Bird. One of the Four Symbols of Chinese constellations, representing the South and the summer season. In Japanese culture, it's often depicted as a phoenix-like bird and is a significant guardian deity. Nara's 朱雀門 (Suzakumon) is a famous example of this cultural icon.
- 朱線 (shusen) — A red line. This can refer to anything from a red line drawn on a map to a red line indicating an important section in a document.
Example Sentences
神社の鳥居は鮮やかな朱色で、青空に映えていました。
Jinja no torii wa azayakana shuiro de, aozora ni haete imashita.
The shrine's torii gate was a vibrant vermilion, standing out against the blue sky.
契約書には、朱肉で押された社長の印鑑が必要です。
Keiyakusho ni wa, shuniku de osareta shachō no inkan ga hitsuyō desu.
The contract requires the president's seal stamped with vermilion ink.
伝統的な漆器は美しい朱塗が特徴で、多くの人を魅了します。
Dentōteki na shikki wa utsukushii shunuri ga tokuchō de, ooku no hito o miryō shimasu.
Traditional lacquerware features beautiful vermilion lacquer, captivating many people.
先生はテストの誤りを丁寧に朱筆で直してくれました。
Sensei wa tesuto no ayamari o teinei ni shuhitsu de naoshite kuremashita.
The teacher carefully corrected the mistakes on the test with a red pen.
夕日が沈む頃、空は朱に染まり、息をのむ美しさでした。
Yūhi ga shizumu koro, sora wa ake ni somari, iki o nomu utsukushisa deshita.
As the sun set, the sky was dyed vermilion, its beauty breathtaking.
奈良にある朱雀門は、古都の歴史を今に伝える壮大な門です。
Nara ni aru Suzakumon wa, koto no rekishi o ima ni tsutaeru sōdai na mon desu.
The Suzakumon Gate in Nara is a magnificent structure, conveying the history of the ancient capital to the present day.
絶滅危惧種である朱鷺の保護活動が、日本全国で行われています。
Zetsumetsu kigishu de aru toki no hogokatsudō ga, Nihon zenkoku de okonawarete imasu.
Conservation efforts for the endangered Crested Ibis are underway throughout Japan.
歴史的な仏像の修復には、貴重な朱砂が顔料として使われます。
Rekishiteki na butsuzō no shūfuku ni wa, kichō na shusa ga ganryō to shite tsukawaremasu.
Precious cinnabar is used as a pigment in the restoration of historical Buddhist statues.
この地図では、重要な経路が朱線で示されています。
Kono chizu de wa, jūyō na keiro ga shusen de shimesarete imasu.
On this map, important routes are indicated by a red line.
寺院の壁に描かれた朱色の絵が、歴史の重みを感じさせます。
Jiin no kabe ni egakareta shuiro no e ga, rekishi no omomi o kanjisemasu.
The vermilion painting on the temple wall evokes a profound sense of history.
Memory Tip
To remember 朱, visualize it as a 'tree' (木) with an additional horizontal stroke through its center. Imagine this stroke highlighting the tree's heartwood—its core. When certain trees are cut, their heartwood often reveals a distinctive reddish, vermilion hue. So, picture a tree that has been marked or cut open, revealing this striking red core. This vivid image of a 'red-hearted tree' will help you recall 朱's meaning of vermilion or cinnabar.