Lifesaver

Pronunciation: /ˈlaɪfˌseɪvər/

Lifesaver (noun)

  1. A person who prevents someone from dying, especially in an emergency.
  2. A device or action that helps keep people alive in dangerous situations.
  3. A small hard sweet, often mint-flavoured, that you suck to freshen your mouth.

Examples

  • The doctor was a lifesaver during the emergency.
  • A firefighter can be a lifesaver in a burning building.