lifesaver

noun

life·​sav·​er ˈlīf-ˌsā-vər 

1

: one trained to save lives of drowning persons

2

: one that is at once timely and effective in time of distress or need

Examples of lifesaver in a Sentence

a surgical procedure that has been a lifesaver for many people

This multipurpose tool can be a real lifesaver when something needs fixing.

Frozen dinners can be lifesavers for busy parents.

Thanks so much for offering to help. You're a real lifesaver!

Recent Examples on the Web

For us, a HEPA air filter in the main living areas is a lifesaver when opening windows isn’t practical. — Hannah Nwoko, Parents, 28 June 2026

This portable cleaner is truly a lifesaver. — Madeline Merinuk, PEOPLE, 26 June 2026

The wrinkle-resistant fabric is a lifesaver when living out of a suitcase. — Becca Blond, Travel + Leisure, 26 June 2026

Anker’s aptly titled Laptop Power Bank is a lifesaver for anyone who works or studies on the go. — Sheena Vasani, The Verge, 24 June 2026

Word History

First Known Use

1887, in the meaning defined at sense 1

Rhymes for lifesaver

• aver
• braver
• craver
• favor
• favour
• flavor
• flavour
• graver
• paver
• quaver
• raver
• saver

Kids Definition

lifesaver

noun

life·​sav·​er ˈlīf-ˌsā-vər 

1

: a person trained to save the lives of drowning persons

2

: something that relieves distress when most needed