(baseball, colloquial) A hard batted or thrown ball which hits or nearly hits someone, especially a line drive foul ball hit into a dugout.

Alternative form of ugly finder

(astronomy) A low-powered telescope with a large field of view, used for finding comets.

A hand-held device used to determine the location of framing studs used in light-frame construction after the walling surface has been installed. It may work by means of a magnet or a capacitor.

A device in microscopes for locating an object in the field before examination at higher magnification.

Alternative form of witchfinder

Alternative form of finders, keepers

A navigational aid to aircraft that provides a bearing to a radio beacon

plural of finderscope

(astronomy) A small telescope, or other sighting device, mounted on top of a main telescope to enable approximate directional positioning.