Dictionary.com
Thesaurus.com
Synonyms

lifesaver

American  
[lahyf-sey-ver] / ˈlaɪfˌseɪ vər /

noun

  1. a person who rescues another from danger of death, especially from drowning.

  2. a person or thing that saves a person, as from a difficult situation or critical moment.

    That money was a lifesaver.

  3. Chiefly British. a lifeguard.


Other Word Forms

  • lifesaving adjective

Etymology

Origin of lifesaver

First recorded in 1880–85; life + saver ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Rowena Bentley, from Anthony Nolan, said Sian's story was helping to raise "vital awareness" of stem cell donation, adding that "becoming lifesaver ready is easy".

From BBC • Jan. 26, 2026

The low unemployment rate, perhaps the biggest surprise of the postpandemic labor market, has been a lifesaver for the economy.

From MarketWatch • Jan. 10, 2026

This new capital has been a lifesaver for private-equity firms, many of which have struggled to raise money from institutional investors for nearly four years.

From The Wall Street Journal • Nov. 21, 2025

The World Service is "an absolute lifesaver" in some countries, said 78-year-old writer Jennifer Kavanagh.

From Barron's • Nov. 15, 2025

The thing about medication is that it’s a true lifesaver if you actually need it.

From "Dry" by Neal Shusterman and Jarrod Shusterman