arch

form an arch or curve

• “her back arches”
• “her hips curve nicely”

the amount that the insurance company will pay on a given life insurance policy if the policy is cancelled prior to the death of the insured

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

a passageway under an arch

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

(of persons) highest in rank or authority or office

• “his arch rival”

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

expert in skulduggery

• “an arch criminal”