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(architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it a passageway under an arch a curved bony structure supporting or enclosing organs (especially arches of the feet) a curved shape in the vertical plane that spans an opening form an arch or curve; "her back arches"; "her hips curve nicely" (used of behavior or attitude) characteristic of those who treat others with condescension superior |
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