Meaning
The kanji 帯 (たい, おび) is quite versatile. It primarily refers to a 'belt,' 'sash,' or 'band,' and can also signify a 'zone' or 'region.' As a verb, it means 'to wear' (especially a sword), 'to carry,' or to 'be tinged with' a particular quality or color. This broad range of meanings comes from its ancient origins and how it evolved within the Japanese language, often reflecting the idea of encircling or carrying something.
Let's look at its origins. The kanji 帯 is a pictographic character. Its traditional form, 帶, visually represented a belt or sash. The top part of the character is thought to have shown ornaments or buckles hanging from a belt, while the middle part symbolized the belt itself wrapped around the waist. The bottom component, 巾 (はば / きん), is a radical meaning 'cloth,' which further emphasizes the character's connection to textile garments worn around the body. This combination beautifully illustrates a ceremonial or functional sash, leading directly to its core meaning: something that binds, encircles, or is carried.
This kanji has 10 strokes and is taught in Grade 4 of elementary school in Japan. This makes it a foundational character for Japanese learners, indicating its relatively simple structure and common use in everyday life, despite its deeper meanings when combined with other kanji or used as a verb.
Readings
On'yomi (音読み) — Chinese-derived readings
The main on'yomi reading for 帯 is タイ (tai). This reading originates from Chinese and is most frequently found in compound words. You'll often see it in terms referring to geographical 'zones' or 'belts' of abstract concepts, as well as words related to carrying or portability. When 帯 is used with this reading, it generally indicates a larger area or a more formal/technical concept.
温帯 (ontai) — Temperate zone. For example, Japan is located in the 温帯.
熱帯 (nettai) — Tropical zone. Countries near the equator are often in the 熱帯.
携帯 (keitai) — Portable; mobile (as in mobile phone). You can often find 携帯用 (keitai-yō, portable) items.
連帯 (rentai) — Solidarity; joint responsibility. This often appears in phrases like 連帯責任 (rentai sekinin, joint responsibility).
Kun'yomi (訓読み) — Native Japanese readings
The kanji 帯 has two primary kun'yomi readings: おび (obi) and おびる (obiru). These are native Japanese pronunciations. They are used for words that directly reflect the character's core meanings in a more traditional sense, often as standalone nouns or verbs.
おび (obi): This reading functions as a noun, most famously referring to the traditional sash worn with a kimono. It can also describe a paper band wrapped around books, CDs, or other items, much like a belly band.
帯 (obi) — Obi (kimono sash); band (around a book). When you buy a new book in Japan, it often has an 帯 with promotional text.
帯締め (obijime) — Kimono sash cord. This cord is used to tie the 帯 securely.
帯結び (obimusubi) — Obi tying. Learning various 帯結び styles is part of kimono dressing.
おびる (obiru): This reading is used as a verb. It means 'to wear' (especially a sword or weapon), 'to carry,' 'to be charged with' a duty, or 'to be tinged/colored with' a certain hue or feeling. It often implies taking on a characteristic or responsibility, or having a subtle quality.
刀を帯びる (katana o obiru) — To wear a sword. Samurai used to 刀を帯びる.
青みを帯びる (aomi o obiru) — To be tinged with blue. The evening sky began to 青みを帯びる.
任務を帯びる (ninmu o obiru) — To be charged with a duty. A secret agent might 任務を帯びる.
Common Words & Compounds
The kanji 帯 appears in a wide array of compound words. These are categorized below by their thematic usage, showcasing its versatility in both concrete and abstract contexts.
Geographical & Abstract Zones
温帯 (ontai) — Temperate zone
熱帯 (nettai) — Tropical zone
寒帯 (kantai) — Frigid zone; polar regions
地帯 (chitai) — Zone; area; region. For example, a 住宅地帯 (jūtaku chitai, residential area).
一帯 (ittai) — (The whole) area; (all over) the region. The 一帯 was covered in snow.
安全帯 (anzentai) — Safety belt; safety harness. Construction workers wear an 安全帯.
Things Carried & Portability
携帯 (keitai) — Portable; something carried (often used for mobile phones, e.g., 携帯電話).
携帯電話 (keitai denwa) — Mobile phone; cell phone.
帯刀 (taitō) — Wearing a sword. Historically, samurai were allowed 帯刀.
帯剣 (taiken) — Wearing a sword (similar to 帯刀). This term is often used in a more modern military or police context.
Figurative & Responsibility
連帯 (rentai) — Solidarity; joint responsibility; corporate body.
連帯責任 (rentai sekinin) — Joint responsibility. The whole team took 連帯責任 for the project's failure.
一衣帯水 (ichiitaisui) — A narrow strip of water. This idiom describes countries or places very close to each other, like being separated only by a narrow body of water.
Obi-Related (Kimono Sashes)
帯 (obi) — Obi (kimono sash).
袋帯 (fukuroobi) — Formal kimono obi. Often used for special occasions like weddings.
名古屋帯 (nagoyaobi) — Less formal kimono obi. A common choice for everyday kimono wear.
Example Sentences
彼女は素敵な着物に合わせて、美しい帯を締めていた。
Kanojo wa suteki na kimono ni awasete, utsukushii obi o shimeteita.
She was wearing a beautiful obi to match her lovely kimono.
地球の多くの地域が温帯に属しています。
Chikyū no ōku no chiiki ga ontai ni zokushiteimasu.
Many regions of the Earth belong to the temperate zone.
彼は腰に短剣を帯びていた。
Kare wa koshi ni tanken o obiteita.
He wore a dagger at his waist.
警察官は銃を帯びて職務を遂行する。
Keisatsukan wa jū o obite shokumu o suikō suru.
Police officers carry guns and perform their duties.
携帯電話は今や生活に欠かせない物です。
Keitai denwa wa ima ya seikatsu ni kakasenai mono desu.
Mobile phones are now indispensable for daily life.
彼女の顔には悲しみが帯びていた。
Kanojo no kao ni wa kanashimi ga obiteita.
Her face was tinged with sadness.
私たちは家族として連帯して困難に立ち向かう。
Watashitachi wa kazoku to shite rentai shite konnan ni tachimukau.
As a family, we face difficulties in solidarity.
熱帯雨林は貴重な生態系を帯びている。
Nettai urin wa kichō na seitaikei o obiteiru.
Tropical rainforests harbor precious ecosystems.
Memory Tip
To remember 帯, imagine someone wearing a sash or belt. The kanji itself can be broken into parts that help with this image. The bottom part, 巾, clearly means 'cloth' or 'fabric' — exactly what a belt is made from. The upper components look like a stylized representation of something wrapped around a waist, perhaps with decorative elements or ties hanging down. Picture a person (implied by the shape above 巾) with a decorative sash (帯) around them, made of cloth. This mental image directly connects the components to the core meaning of a 'sash' or 'belt' and, by extension, 'to wear' or 'to carry' something around one's body.