| 1. | a monumental archway, often erected in permanent materials as a commemorative structure, straddling the line of march of a victorious army during a triumphal procession. |
| 2. | an architectural motif resembling in its composition an ancient Roman triumphal arch, having one high central archway flanked by side elements composed of lower arches, compartments, bas-reliefs, etc., the whole usually adorned by a huge order. |
