Translation guide
The English word "lifesaver" can refer to a person who rescues others, a thing that prevents disaster, or a literal life preserver. This guide covers natural Japanese expressions for each meaning.
To describe someone who rescues people from danger, especially in emergencies like drowning or accidents.
Literally 'life benefactor', this is the most common and natural way to call someone a lifesaver in the sense of having saved your life.
彼は私の命の恩人です。
He is my lifesaver.
You are a lifesaver for helping me back then.
A more formal term for 'rescuer', often used in news or official contexts. It can refer to anyone who performs a rescue, not necessarily life-saving.
救助者が到着するまでに時間がかかった。
It took time for the lifesavers to arrive.
A loanword from English, primarily used for professional beach lifeguards in Australia or similar contexts. Not commonly used for a personal lifesaver.
オーストラリアのライフセーバーは有名だ。
Australian lifesavers are famous.
To express gratitude to someone who provided crucial help, not necessarily life-threatening, like fixing a problem or offering timely assistance.
A very common casual expression meaning 'I was saved' or 'You saved me'. It directly conveys the feeling of being rescued from a tough spot.
手伝ってくれて本当に助かったよ。
You really saved me by helping out.
その情報、助かった！
That information was a lifesaver!
Literally 'picked up my life', used figuratively to mean 'you saved my life' in a non-literal sense, often when someone helps avoid a big problem.
君のおかげで命拾いしたよ。
Thanks to you, I was saved (figuratively).
Means 'savior' or 'messiah'. Used jokingly or dramatically when someone rescues you from a crisis. Can sound exaggerated.
To describe an object, tool, or resource that saves you from a difficult situation, like a spare battery, a helpful app, or extra money.
Literally 'lifeline', used metaphorically for something essential that keeps you going or prevents failure.
この辞書は私の命綱だ。
This dictionary is my lifesaver.
非常食が命綱になった。
The emergency food was a lifesaver.
Means 'saving grace' or 'godsend'. Used for something that unexpectedly solves a problem.
そのアプリは救いの神だった。
That app was a lifesaver.
Literally 'rescue boat', used figuratively for timely help or a solution that saves the day.
To refer to a physical ring or vest used to keep someone afloat in water.
The standard term for a lifebuoy or ring buoy. Used in safety contexts.
船に救命浮環が備えてある。
The ship is equipped with lifesavers.
A general term for a swim ring or inflatable ring, often used by children at the pool. Not a professional lifesaving device.
Directly translating 'lifesaver' as 命の救助者 (いのちのきゅうじょしゃ) is unnatural. Use 命の恩人 for a person who saved your life, or 助かった for casual thanks.
彼は命の恩人です。
He is a lifesaver.
彼が来てくれて、まるで救世主だった。
When he came, he was like a lifesaver.
彼のアドバイスが助け舟になった。
His advice was a lifesaver.
Life jacket or life vest. Commonly used on boats and airplanes.
救命胴衣を着用してください。
Please put on your lifesaver.
The kids are playing with a lifesaver ring.