Translation guide
A muffler can refer to a device that reduces noise from an engine (exhaust system) or a scarf worn around the neck for warmth. These are distinct concepts in Japanese.
A thick scarf worn around the neck to keep warm, often in cold weather.
The most common word for a winter scarf. A loanword from English, used for any scarf worn for warmth.
I wrapped a muffler around my neck because it was cold.
A traditional Japanese word for a scarf or neck wrap. Less common than マフラー but still understood.
A device attached to the exhaust system of a vehicle to reduce engine noise.
The standard term for a vehicle's muffler/silencer. Same loanword as the scarf, but context distinguishes them.
The word マフラー can mean either a scarf or a car muffler. The intended meaning is usually clear from the situation. If ambiguity is possible, clarify with additional words like 車のマフラー (car muffler) or 首に巻くマフラー (scarf worn around the neck).
This muffler is hand-knitted.
祖母が襟巻きを編んでくれた。
My grandmother knitted me a muffler.
The car's muffler is broken and it's noisy.
I need to replace the muffler.
A technical term for a silencer/muffler. Used in engineering contexts or formal writing.
This device is equipped with a high-performance muffler.