Added 9 October 2026 lifeline /ˈlaɪfˌlaɪn/ noun Categories: Describing WordsMind & IdeasRare Words noun ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about lifeline at Wordnik → Where our words come from → A line to which a drowning or falling victim may cling. A source of salvation in a crisis. A means or route for transporting indispensable supplies. Origin From life + line. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: lifebeltlifebuoybuoyvalvehoseropecordtiplifesaverrescue Back to today's word