Short for Aeroplane or Airplane, referred to by aircraft engineers as a fixed-wing aircraft;
Plane (mathematics), theoretical surface which has infinite width and length, zero thickness, and zero curvature;
Plane (tool), a woodworking tool for flattening surfaces;
Plane (metaphysics), a theoretical region beyond the known universe, or the region containing the universe itself
Plane (Dungeons & Dragons), a plane of existence within the role-playing game;
Plane (Magic: The Gathering), a plane of existence within the trading card game;
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Planing (sailing), a method of travelling quickly across water by using speed to lift the hull out of the water;
Plane of immanence, a philosophical concept;
Platanus, a genus of trees with the common name "plane tree".;
Sycamore maple;