noun
- plural of keel: the main structural beam running along the bottom of a ship or boat
Usage: nautical
verb
- third person singular present of keel: to fall over suddenly
Usage: informal
Examples
- The shipyard workers inspected the keels of three new vessels.
- Modern yacht keels are often made of lead or iron.
- The damaged keels required extensive repairs before launch.
- He keels over from exhaustion after the marathon.
- The old tree keels over in the strong wind.
- She nearly keels over when she hears the shocking news.