19-letter words containing a, g, u, c, h, e
- tuamotu archipelago — a group of about 80 coral islands in the S Pacific, in French Polynesia. Pop: 15 973 (2002; including the Gambier Islands). Area: 860 sq km (332 sq miles)
- ultrahigh frequency — any frequency between 300 and 3000 megahertz. Abbreviation: UHF, uhf.