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.
A device attached to the exhaust system of a vehicle to reduce engine noise.
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).
寒いのでマフラーを巻いた。
I wrapped a muffler around my neck because it was cold.
このマフラーは手編みです。
This muffler is hand-knitted.
My grandmother knitted me a muffler.
The standard term for a vehicle's muffler/silencer. Same loanword as the scarf, but context distinguishes them.
車のマフラーが壊れて音がうるさい。
The car's muffler is broken and it's noisy.
マフラーを交換する必要がある。
I need to replace the muffler.
A technical term for a silencer/muffler. Used in engineering contexts or formal writing.
この装置には高性能の消音器が付いている。
This device is equipped with a high-performance muffler.