Definition of keel noun from the Oxford Advanced Learner's Dictionary

 

keel

 noun
noun
BrE BrE//kiːl//
 
; NAmE NAmE//kiːl//
 
Travelling by boat or ship
 
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  • the long piece of wood or steel along the bottom of a ship, on which the frame is built, and which sometimes sticks out below the bottom and helps to keep it in a vertical position in the water See related entries: Travelling by boat or ship
  • Word Origin Middle English: from Old Norse kjǫlr, of Germanic origin.Idioms living, working or happening in a calm way, with no sudden changes, especially after a difficult time Business is now back on an even keel after the postal strike. Setting her life back on an even keel after their break-up had been incredibly difficult.
    See the Oxford Advanced American Dictionary entry: keel