平ら

(1)having a surface free from roughness or bumps or ridges or irregularities; "smooth skin"; "a smooth tabletop"; "smooth fabric"; "a smooth road"; "water as smooth as a mirror"

(2)粗さ、隆起、うねまたは不連続性のない表面を持つ

(3)being level or straight or regular and without variation as e.g. in shape or texture; or being in the same plane or at the same height as something else (i.e. even with); "an even application of varnish"; "an even floor"; "the road was not very even"; "the picture is even with the window"

(4)例えば、形またはテクスチャーのように変化を伴わず水平である、直線であるあるいは規則的であるさま

(5)同じ同一平面、または、何か他のものと同じ高さであること（すなわち、同等）

(6)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"

(7)斜面のない表面を持つこと、一部分がもう一つより高くないまたは低くない傾斜

(1)