| River to Boston Harbor | 22 |
| River to English Channel | 24 |
| River to Gulf of Finland | 24 |
| River to Gulf of Guinea | 23 |
| River to Hecate Strait | 22 |
| River to Kassel, Germany | 24 |
| River to Liverpool Bay | 22 |
| River to Mediterranean | 22 |
| River to Pamlico Sound | 22 |
| River to Siegen, Germany | 24 |
| River to the Adriatic Sea | 25 |
| River to the Arabian Sea | 24 |
| River to the Arctic Ocean | 25 |
| River to the Baltic Sea | 23 |
| River to the Bay of Bengal | 26 |
| River to the Bay of Biscay | 26 |
| River to the Bering Sea | 23 |
| River to the Black Sea | 22 |
| River to the Caspian Sea | 24 |
| River to the Chesapeake Bay | 27 |
| River to the English Channel | 28 |
| River to the Firth of Clyde | 27 |
| River to the Gulf of Cambay | 27 |
| River to the Gulf of Finland | 28 |
| River to the Gulf of Guinea | 27 |
| River to the Gulf of Mexico | 27 |
| River to the Humber estuary | 27 |
| River to the Indian Ocean | 25 |
| River to the Irish Sea | 22 |
| River to the Laptev Sea | 23 |
| River to the Ligurian Sea | 25 |
| River to the Mediterranean | 26 |
| River to the Mississippi | 24 |
| River to the Moray Firth | 24 |
| River to the North Sea | 22 |
| River to the Rio Grande | 23 |
| River to the Sea of Okhotsk | 27 |
| River to the sea, in French | 27 |
| River to the South China Sea | 28 |
| River to the St. Lawrence | 25 |
| River to the Tyrrhenian Sea | 27 |
| River to the underworld | 23 |
| River to the Volga near Gorky | 29 |
| River to the Yellow Sea | 23 |
| River tributary, often | 22 |
| River under the Peace Bridge | 28 |
| River under the Ponte Sisto | 27 |
| River under the Ponte Vecchio | 29 |
| River valley formation | 22 |
| River vehicles with engines | 27 |
| River viewed from Amboise | 25 |
| River where Rome was founded | 28 |
| River with a fragrant sound | 27 |
| River with famous falls | 23 |
| River ___ (old Atari game) | 26 |
| River's end, often | 22 |
| River's end, sometimes | 26 |
| River's little cousin | 25 |
| River's mouthpiece | 22 |
| River's path, possibly | 26 |
| River's principal channel | 29 |
| River's smaller relative | 28 |
| River's upper tributaries | 29 |
| River, politician or cloth | 26 |
| River, site of Victoria falls | 29 |
| River, town or bay in N.J. | 26 |
| River-mouth formations | 22 |
| River-pollution problem | 23 |
| River-project board: Abbr. | 26 |
| River-to-ocean connector | 24 |
| Rivera and Orozco, e.g. | 23 |
| Rivera known for saves | 22 |
| Rivera of "Chicago" | 29 |
| Rivera's opportunity | 24 |
| Riverbank basker, informally | 28 |
| Riverbank steps in India | 24 |
| Riverbend Festival city | 23 |
| Riverboat Robert _____ | 22 |
| Riverboats' propellers | 26 |
| Riverdale High athlete | 22 |
| Riverfront Stadium nine | 23 |
| Riverfront Stadium players | 26 |
| Riverfront Stadium team | 23 |
| Rivers Cuomo's band | 23 |
| Rivers in England and France | 28 |
| Rivers in England and Ontario | 29 |
| Rivers in Scotland and Wales | 28 |
| Rivers in Wales and Scotland | 28 |
| Rivers run through them | 23 |
| Rivers who coached the Celts | 28 |
| Rivers' destination | 23 |
| Riveted with attention | 22 |
| Riveter of World War II | 23 |
| Riveter painted by Rockwell | 27 |
| Riveting figure of the 1940s | 28 |
| Riveting piece, perhaps | 23 |
| Riveting woman of WWII | 22 |
| Riviera resort San --- | 22 |
| Riviera resort San ---- | 23 |
| Riviera resort San ___ | 22 |