帯（おび、obi）
- obi (kimono sash)

The Japanese word 帯, pronounced おび (obi), primarily refers to a belt or sash, especially one worn with traditional Japanese clothing like kimonos. It's a key part of the attire, used to secure the garment and enhance its appearance. However, the word 帯 can also have figurative meanings related to a band, zone, or region. It implies something that encircles, connects, or defines an area.

⚫︎ 着物の帯 Translation: Kimono belt/sash ⚫︎ 電波帯 Translation: Radio wave band ⚫︎ 地帯 Translation: Zone/region

This word is commonly used in discussions about traditional Japanese clothing, describing the different types of 帯 and how they are tied. It also appears in technical contexts, such as describing frequency 帯 in telecommunications, and more broadly, in any context where a band or zone is being referred to. The appropriate usage depends on the context; a person discussing fashion would likely be talking about a belt or sash, whereas a scientist might be discussing an electromagnetic 帯.

The word 帯 is typically written in kanji 帯. The hiragana reading is おび. There are no variations in the okurigana for the main definition as "belt/sash".

There aren't direct synonyms that fully capture all the meanings of 帯. However, related words or phrases include: ⚫︎ ベルト (beruto) - belt (loanword from English, used more generally for belts) ⚫︎ 腰ひも (koshihimo) - sash/string tied around the waist (used for kimonos sometimes) ⚫︎ エリア (eria) - area, region (loanword from English) ⚫︎ ゾーン (zoon) - zone (loanword from English)

The direct antonyms vary based on the context. For the belt meaning, there's no single perfect opposite, however, words relating to something loose or unbound might be considered, as there aren't direct antonyms. ⚫︎ ほどく (hodoku) - to untie/undo (for a belt) ⚫︎ 開放 (kaihou) - open (for a band or a zone)

彼女は美しい模様の着物の帯を選んだ。 ・Translation: She chose a kimono belt with a beautiful pattern. ・Explanation: This sentence demonstrates the usage of 帯 in the context of traditional Japanese clothing.

この地域は地震帯］に位置している。 ・Translation: This region is located in an earthquake zone. ・Explanation: This example shows the usage of 帯 to refer to a geographical zone or area.

The etymology of 帯 (obi) is not entirely clear, but the kanji itself 帯 is a combination of two parts. The upper component, 巾, is an old character for cloth. The lower part 帀means "to wrap". Therefore, the character as a whole is composed of the concept of "cloth" with "surrounding", implying "something to wrap around" or a belt.