| arch | (architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it |
|---|---|
| arch | a passageway under an arch |
| arch | a curved bony structure supporting or enclosing organs (especially arches of the feet) |
| arch | a curved shape in the vertical plane that spans an opening |
| arch | form an arch |
| arch | (of persons) highest in rank or authority or office |
| arch | expert in skulduggery |
| arch | (used of behavior or attitude) characteristic of those who treat others with condescension |
| arch | form an arch over |
| arch | a support for the arch of the foot |
| arch | (geology) used of the earliest known rocks |
| arch | considered ancient life forms that evolved separately from bacteria and blue-green algae |