lifeline

noun

life·​line ˈlīf-ˌlīn 

1

: a line (such as a rope) used for saving or preserving life: such as

a

: a line along the outer edge of the deck of a boat or ship

b

: a line used to keep contact with a person (such as a diver or astronaut) in a dangerous or potentially dangerous situation

2

: something regarded as indispensable for the maintaining or protection of life

Examples of lifeline in a Sentence

The river is the town's lifeline.

The new jobs were an economic lifeline for a city in need of help.

The radio was their lifeline to the outside world.

They threw a lifeline to the man overboard.

Recent Examples on the Web

Global Use, Local Impact Stablecoins are already a lifeline in economically unstable countries. —Jon Helgi Egilsson, Forbes.com, 27 Mar. 2025

But Hegseth’s denial was a lifeline to MAGA media commentators who are now saying there is a dispute over the facts. —Brian Stelter, CNN, 25 Mar. 2025

Longevity preparedness seeks to ensure that no single person alone is the sole lifeline when needs arise. —Joseph Coughlin, Forbes, 23 Mar. 2025

Wade’s agreement with McNeese was both a lifeline and a stepping stone. —Eben Novy-Williams, Sportico.com, 22 Mar. 2025

Word History

First Known Use

1700, in the meaning defined at sense 1

Rhymes for lifeline

• acridine
• alkaline
• andesine
• anodyne
• anticline
• arginine
• asinine
• atropine
• benzidine
• borderline
• byzantine
• calamine

Kids Definition

lifeline

noun

life·​line ˈlī-ˌflīn 

1

: a line persons may hang on to for safety or rescue

2

: something providing help or support that is needed for success or survival