Difference between Lurch and Keel

Lurch

Part of speech: noun

Definition: A sudden or unsteady movement.

Part of speech: verb

Definition: To make such a sudden, unsteady movement.

Keel

Part of speech: verb

Definition: to collapse, to fall

Part of speech: noun

Definition: A large beam along the underside of a ship's hull from bow to stern.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.Something similar to chalk or crayon used to mark pavement.

Example sentence: I prefer highs and lows to an even keel. Moderation is never something I've been good at.