Level  —n. 1 horizontal line or plane. 2 height or value reached; position on a real or imaginary scale (eye level; sugar level; danger level). 3 social, moral, or intellectual standard. 4 plane of rank or authority (talks at cabinet level). 5 instrument giving a line parallel to the plane of the horizon. 6 level surface. 7 flat tract of land. —adj. 1 flat and even; not bumpy. 2 horizontal. 3 (often foll. By with) a on the same horizontal plane as something else. B having equality with something else. 4 even, uniform, equable, or well-balanced. —v. (-ll-; us -l-) 1 make level. 2 raze. 3 (also absol.) Aim (a missile or gun). 4 (also absol.; foll. By at, against) direct (an accusation etc.).  do one's level best colloq. Do one's utmost. Find one's level reach the right social, intellectual, etc. Position. Level down bring down to a standard. Level off make or become level. Level out make or become level. Level up bring up to a standard. On the level 1 honestly, without deception. 2 honest, truthful. On a level with 1 in the same horizontal plane as. 2 equal with. [latin diminutive of libra balance]