WordNet: arch

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

• hypernym skeletal structure

• hyponym metatarsal arch

• hyponym instep

• hyponym pectoral arch, shoulder girdle

• hyponym haemal arch, hemal arch

• hyponym neural arch, vertebral arch

arch

• (englanti) arch (derivationally related)
• (suomi) kaari (synonyymi)