lifesaver

lifesaver — noun

1. a person or thing that gets you out of a difficult or unpleasant situation by pr

1.nounB2
Definition

a person or thing that gets you out of a difficult or unpleasant situation by providing exactly what you need at the right moment

Example

After Cyrus lost his notes, his classmate Jisoo was a lifesaver by sharing hers.

person as lifesaver — sharing needed items

This translation app was a lifesaver when Ishaan's phone broke in a foreign country.

thing as lifesaver in a travel emergency

Common collocations
  • real lifesaver
  • absolute lifesaver
  • prove to be a lifesaver
  • turn out to be a lifesaver
Synonyms
  • godsend

    more formal than lifesaver; suggests something providentially timed

  • lifeline

    implies ongoing support rather than a one-time fix

  • angel

    very informal, used directly to a person ('You're an angel!')

Antonyms
  • burden

    something that makes a bad situation worse

  • hindrance

    someone or something that blocks progress

Grammar Patterns

be a lifesaver

[possessive] + lifesaver

Usage Note

Often used in the fixed expression 'You're a lifesaver!' when thanking someone informally for unexpected help.

Common Mistakes

You are a life saver.
You are a lifesaver.
Modern English writes the compound as one word, not two.

2. a piece of equipment, a device, or a system designed to prevent death or serious

2.nounB2
Definition

a piece of equipment, a device, or a system designed to prevent death or serious injury when an emergency happens

Example

The life jacket was a lifesaver during the boat accident on the lake.

lifesaver as safety equipment (life jacket)

AED machines placed in public buildings can be lifesavers during heart emergencies.

lifesaver as medical device (AED)

Common collocations
  • emergency lifesaver
  • potential lifesaver
  • simple lifesaver
Synonyms
Antonyms

Grammar Patterns

be a lifesaver

lifesaver + for

Usage Note

Sense 2 refers only to objects or systems — not to people. For a person who saves lives in an emergency, use sense 3 or the word rescuer.

3. someone whose job it is to watch over swimmers at a beach, swimming pool, or wat

3.nounB1
Definition

someone whose job it is to watch over swimmers at a beach, swimming pool, or water park and to rescue anyone in danger of drowning

Example

The lifesaver spotted a struggling swimmer and dived into the pool right away.

lifesaver as job: rescuing swimmers

Tunde works as a lifesaver at the public beach near his home every summer.

Common collocations
  • trained lifesaver
  • certified lifesaver
  • beach lifesaver
  • pool lifesaver
Synonyms
  • lifeguard

    the dominant term in American English; also common globally

  • beach patrol

    refers to the team or organization, not the individual

Grammar Patterns

work as a lifesaver

certified lifesaver

Usage Note

In American English, this person is nearly always called a lifeguard. Lifesaver in this sense is more common in British, Australian, and New Zealand English.

Common Mistakes

I want to be a lifesaver' (when you mean lifeguard in US English).
I want to be a lifeguard.
In the US, 'lifeguard' is the standard term.

Word family

Synonym discussion

Sense: noun/1

While lifesaver, godsend, lifeline, and blessing all describe something helpful in a tough situation, they differ in tone and scope. Lifesaver (informal) highlights solving an immediate, practical problem — the right thing arriving at the right moment. Godsend (slightly more formal) suggests a timely arrival that feels almost providential, often for a serious need that has lasted a while. Lifeline (metaphorical) implies ongoing, sustained support — something a person depends on to keep going, such as a regular income or emotional support from a friend. Blessing is the broadest term; it can mean anything positive without necessarily being tied to a crisis. For example: 'The part-time job was a lifeline during her final year of college' (ongoing help) vs. 'Finding a twenty-dollar bill on the street was a lifesaver' (one-time fix).

godsendlifelineblessing ↗

Common collocations

Nouns

  • life jacket
  • seat belt
  • smoke detector
  • AED machine

Adverbs

Phrases

  • be a lifesaver
  • turn out to be a lifesaver
  • prove to be a lifesaver
  • thank someone for being a lifesaver

Prepositions

Etymology

Old EnglishOld FrenchEnglish

A compound word formed from 'life' (Old English līf, meaning the condition of being alive) and 'saver' (from the verb 'save', from Old French sauver, meaning to rescue or keep safe). The modern spelling as one word became standard in the 20th century.