arch

Adjective

• naughtily or annoyingly playful
  • teasing and worrying with impish laughter
    
  • a wicked prank
    

• expert in skulduggery
  • an arch criminal
    

• (used of behavior or attitude) characteristic of those who treat others with condescension

Noun

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

• a passageway under a curved masonry construction
  • they built a triumphal arch to memorialize their victory
    

• a curved bony structure supporting or enclosing organs (especially the inner sides of the feet)

• a curved shape in the vertical plane that spans an opening

Verb

• form an arch or curve
  • her back arches
    
  • her hips curve nicely
    

Related words

• Synonyms: 
  impish , implike , mischievous , pixilated , prankish , puckish , wicked , arch(a) , condescending , patronizing , patronising , archway , curve , arc