A level or flat surface. / (geometry) A flat surface extending infinitely in all directions (e.g. horizontal or vertical plane). / (anatomy) An imaginary plane which divides the body into two portions.

(countable, carpentry) A tool for smoothing wood by removing thin layers from the surface.

(transitive, carpentry) To smooth (wood) with a plane.

An airplane; an aeroplane. / (entomology) Any of various nymphalid butterflies, of various genera, having a slow gliding flight.

(nautical, of a boat) To move in a way that lifts the bow out of the water. / To glide or soar.

(countable) A deciduous tree of the genus Platanus. / (Northern UK) A sycamore.

(medicine) A dummy medicine containing no active ingredients; an inert treatment. / (Roman Catholicism) The vespers sung in the office for the dead.

A drawing showing technical details of a building, machine, etc., with unwanted details omitted, and often using symbols rather than detailed drawing to represent doors, valves, etc.

(transitive) To design (a building, machine, etc.). / (transitive) To create a plan for. / (intransitive) To intend. / (intransitive) To make a plan.

(baseball) A flat, pentagonal, rubber object placed at the center of the batter's box, which is used as a basis for judging pitched strikes and balls, and the touching of which by a runner advancing from or past third base scores a run.