A narrow hole drilled or punched into a surface, to facilitate the insertion of a wider screw, nail, drill bit, or other boring tool.

plural of fighter pilot

A proof of concept; an initial prototype.

A small-scale chemical engineering facility designed to research the full-scale production of a product.

Either of two species of whale in the genus Globicephala, dark grey in colour.

A pilot available for hire to fly, typically over short routes in light aircraft

(chiefly Canada, Australia, New Guinea) A pilot who flies small aircraft to and from remote locations, over expanses of relatively unpopulated territory.

Alternative spelling of pilot hole

plural of pilot whale

plural of pilot light