Lifesaver: meaning, definitions and examples

Used to describe someone or something that comes to assist in a critical situation, often unexpectedly. It can be used in both literal and metaphorical situations.

• This portable charger is a lifesaver when my phone runs out of battery.
• The paramedic was a real lifesaver after the car accident.

Typically used to refer to someone who performs a brave or selfless act, often with the implication of risking their own safety for others. It usually carries a very positive connotation.

• The firefighter who rescued the children from the burning building is a true hero.
• In the movie, the hero saves the day against all odds.

Used to describe any object or action that saves someone from a difficult or dangerous situation, not limited to water-related scenarios.

• That extra phone charger was a real lifesaver during the trip.
• Her advice was a lifesaver when I didn't know what to do next.

Commonly used term in American English specifically for devices like life jackets that keep a person afloat in water, generally in emergency situations.

• Grab a life preserver from under your seat in case of an emergency.
• The life preserver saved him when he fell off the boat.

Specifically refers to the ring-shaped device that is thrown to someone in the water to help them float. Frequently found on boats and near bodies of water.

• The lifeguard threw a lifebuoy to the swimmer struggling in the waves.
• Every pool should have a lifebuoy easily accessible.

Refers to any equipment designed to keep someone afloat in water. Often used in formal contexts or product descriptions.

• Make sure every passenger has a floatation device before we set sail.
• Children should always wear a floatation device when swimming in the lake.