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. Synonyms: archway. Example: "They built a triumphal arch to memorialize their victory."

(noun) (architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it.

(verb) form an arch or curve. Synonyms: curve, arc. Examples: "Her back arches." "Her hips curve nicely."

(adj) (used of behavior or attitude) characteristic of those who treat others with condescension. Synonyms: condescending, patronizing, patronising.

(adj) expert in skulduggery. Synonyms: arch(prenominal). Example: "An arch criminal."

(adj) naughtily or annoyingly playful. Synonyms: impish, implike, mischievous, pixilated, prankish, puckish, wicked. Examples: "Teasing and worrying with impish laughter." "A wicked prank."