n. - Any part of a curved line.
n. - Usually a curved member made up of separate wedge-shaped solids, with the joints between them disposed in the direction of the radii of the curve; used to support the wall or other weight above an opening. In this sense arches are segmental, round (i. e., semicircular), or pointed.
n. - A flat arch is a member constructed of stones cut into wedges or other shapes so as to support each other without rising in a curve.
n. - Any place covered by an arch; an archway; as, to pass into the arch of a bridge.
n. - Any curvature in the form of an arch; as, the arch of the aorta.
v. t. - To cover with an arch or arches.
v. t. - To form or bend into the shape of an arch.
v. i. - To form into an arch; to curve.
a. - Chief; eminent; greatest; principal.
a. - Cunning or sly; sportively mischievous; roguish; as, an arch look, word, lad.
n. - A chief.