(~s)
1.
Something that is ~ is flat and level with the ground, rather than at an angle to it.
The board consists of vertical and ~ lines...
ADJ
•
Horizontal is also a noun.
Do not raise your left arm above the ~.
N-SING: the N
~ly
The wind was cold and drove the snow at him almost ~ly.
ADV: ADV with v, ADV -ed
2.
A ~ is a line or structure that is ~.
The undulating planes of the countryside provide relief from the hard ~s and verticals of the urban scene.
N-COUNT