arches

Noun

• a curved shape in the vertical plane that spans an opening
• a curved bony structure supporting or enclosing organs (especially the inner sides of the feet)
• a passageway under a curved masonry construction
• (architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it
• plural of arch

Verb

• form an arch or curve
  • "her back arches"
• third-person singular simple present indicative of arch

Synonyms

arc, arch, archway, curve