arch
noun.
a curved shape in the vertical plane that spans an opening
noun.
a curved bony structure supporting or enclosing organs (especially the inner sides of the feet)
noun.
a passageway under a curved masonry construction
they built a triumphal arch to memorialize their victory
Synonym: archway
noun.
(architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it
verb.
form an arch or curve
her back arches|her hips curve nicely
Synonym: arc, curve
adj.
(used of behavior or attitude) characteristic of those who treat others with condescension
adj.
naughtily or annoyingly playful
teasing and worrying with impish laughter|a wicked prank