Of land, ground, etc.: level, flat; not hilly or sloping.

Of a horizontal surface, as the ground, the sea, etc.: level, even, flat, free from elevations and depressions. Now regional (rare).

Flat, level.

Flat, level.

Having an even surface; ‘not having one part higher than another’ (Johnson).

Without curvature or projection of surface. Of a surface: Without curvature, indentation, or protuberance; plane, level.

Of the ground, a road, etc.: level, smooth, uniform, even.

Of a material surface, or a body having such a surface: flat and smooth; level; not convex or concave.

Not raised (in various senses).

= planar, adj. 1.

Flat. Obsolete.

Even, level, in the same plane (whether horizontal or vertical) with (dialect by).

Even, straight, level. Also const. with.

the large table on which the game of billiards is played; usually 12 ft. by 6 ft., covered with fine green cloth, surrounded by a cushioned ledge…