シートベルト（シートベルト、shiーtoberuト）
- seat belt

The word シートベルト, pronounced shiitoberuto, is a Japanese word borrowed from English. It refers to a seatbelt, a safety device used in vehicles (cars, buses, airplanes, etc.) to restrain the occupant and prevent or minimize injury in the event of a crash or sudden stop. It’s also sometimes referred to as a safety belt.

⚫︎シートベルトを締めてください。 Translation: Please fasten your seatbelt. ⚫︎事故の後、シートベルトのおかげで命が助かった。 Translation: I survived the accident thanks to the seatbelt. ⚫︎子供たちはシートベルトを着用しました。 Translation: The children wore their seatbelts.

You use シートベルト in any situation where you are discussing or referring to a seatbelt. This includes conversations about car safety, driving, regulations, or even personal experiences involving vehicles. The verb often used with シートベルト is 締める（to fasten/tighten) or 着用する (to wear).

シートベルト is written in katakana, シシートベルト, ー（long vowel), ト, ベ, ル, ト, because it is a loanword from English ("seat belt"). There are no other common ways to write this word. Okurigana is not applicable.

There are no direct, widely used Japanese synonyms for シートベルト. You might occasionally see it referred to as: • 安全ベルト (anzen beruto): safety belt. This is not as commonly used.

There is no specific antonym. It would be described by a lack of something; for example, not wearing a seatbelt. • シートベルトをしない: Not wearing a seatbelt.

運転する前に、必ずシートベルトを締めてください。 ・Translation: Before driving, always fasten your seatbelt. ・Explanation: This sentence gives a basic instruction about car safety.

シートベルトを着用することは、法律で義務付けられています。 ・Translation: Wearing a seatbelt is mandated by law. ・Explanation: This sentence explains a legal requirement.

The word シートベルト is a direct borrowing from the English phrase "seat belt". It's a combination of "seat" and "belt".