Keel

Noun

 * 1) a large beam along the underside of a ship’s hull from bow to stern
 * 2) sometimes, a rigid, flat piece of material anchored to the lowest part of the hull of a ship to give it greater control and stability
 * 3) a type of flat-bottomed boat
 * 4) something similar to chalk or crayon used to mark pavement

Derived terms

 * keelhaul
 * keel over

Verb

 * 1)  to collapse, to fall
 * He keeled over after having a stroke.

Derived terms

 * keel over

Thesaurus
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