arches

(noun) a curved shape in the vertical plane that spans an opening. Synonyms: arch.

(noun) a curved bony structure supporting or enclosing organs (especially the inner sides of the feet). Synonyms: arch.

(noun) a passageway under a curved masonry construction. Synonyms: arch, 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. Synonyms: arch.

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