3. (noun)plane makeeven or smooth, with or as with a carpenter's plane "plane the top of the door"
4. (adj)flat, level, plane having a surface without slope, tilt in which no part is higher or lower than another
"a flat desk"; "acres of level farmland"; "a plane surface"; "skirts sewn with fine flat seams"
5. (verb)plane, shave cut or remove with or as if with a plane "The machine shaved off fine layers from the piece of wood"