arch meaning and definition

ARCH noun

Definition of arch (noun)

1. a curved shape in the vertical plane that spans an opening
2. a curved bony structure supporting or enclosing organs (especially the inner sides of the feet)
3. a passageway under a curved masonry construction
   • "they built a triumphal arch to memorialize their victory"
   • synonyms: archway
4. (architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it

ARCH verb

Definition of arch (verb)

1. form an arch or curve
   • "her back arches"; "her hips curve nicely"
   • synonyms: arc, curve

ARCH adjective

Definition of arch (adjective)

1. (used of behavior or attitude) characteristic of those who treat others with condescension
   • synonyms: condescending, patronising, patronizing
2. expert in skulduggery
   • "an arch criminal"
3. naughtily or annoyingly playful
   • "teasing and worrying with impish laughter"; "a wicked prank"
   • synonyms: impish, implike, mischievous, pixilated, prankish, puckish, wicked