(transitive) To put an end to; to defeat or frustrate (a scheme or project).

(informal) Completely; wholly; hopelessly; head over heels.

A vertical cylindrical revolving tool-holder for bringing different tools into action successively in a machine, as in a lathe.

pronephros

A sea that meets the head of a vessel or rolls against her course.

The head of water employed to turn a millwheel.

(informal) With the whole person; deeply; completely.

Bad leaders harm an organization.

(idiomatic) A calm, focused demeanor and mindset; a person having such characteristics.

(obsolete, idiomatic) Negligently; rashly; without seeing what one does.