arch
noun
a curved shape in the vertical plane that spans an opening
a curved bony structure supporting or enclosing organs (especially the inner sides of the feet)
a passageway under a curved masonry construction
“they built a triumphal arch to memorialize their victory”
Synonymsarchway(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”
adjective
(used of behavior or attitude) characteristic of those who treat others with condescension
naughtily or annoyingly playful
“teasing and worrying with impish laughter”
“a wicked prank”
Source: WordNet 3.1, Princeton University
