1.to fall over suddenly
He finished the bottle, stood up to leave, and keeled over.
2.If a boat keels over, it turns upside down in the water
The storm raged and they struggled to stop the boat from keeling over.
3.to fall over suddenly
After running the marathon, Jasper keeled over with exhaustion.
1.the long piece of wood or metal along the bottom of a boat that forms part of its structure and helps to keep the boat balanced in the water
2.the long piece of wood or steel put along the bottom of a boat from front to back that supports the frame
3.continuing or operating without problems or sudden changes
High oil prices are making it difficult to keep the economy and inflation on an even keel.