| Rugged mountain feature | 23 |
| Rugged mountain range | 21 |
| Rugged mountain ranges | 22 |
| Rugged mountain ridges | 22 |
| Rugged or dogged individualist | 30 |
| Rugged or rocky | 15 |
| Rugged outcropping | 18 |
| Rugged peak | 11 |
| Rugged peaks | 12 |
| Rugged range | 12 |
| Rugged rides, for short | 23 |
| Rugged ridge | 12 |
| Rugged ridges | 13 |
| Rugged rise | 11 |
| Rugged road race | 16 |
| Rugged rock | 11 |
| Rugged rock formation | 21 |
| Rugged rock projection | 22 |
| Rugged rocks | 12 |
| Rugged sort | 11 |
| Rugged transport, for short | 27 |
| Rugged transportation | 21 |
| Rugged transportation, for short | 32 |
| Rugged transports, for short | 28 |
| Rugged two-wheeler | 18 |
| Rugged vehicle | 14 |
| Rugged vehicles | 15 |
| Rugged wheels (abbr.) | 21 |
| Rugged wheels, briefly | 22 |
| Rugged wheels: Abbr. | 20 |
| Rugged wraparound | 17 |
| Rugged, sporty vehicles, for short | 34 |
| Rugged-rock runner | 18 |
| Ruggles's home | 18 |
| Ruggles's milieu | 20 |
| Ruggles's was red | 21 |
| Ruggles, Benny and Bolger | 25 |
| Rugmaker's devices | 22 |
| Rugmaker's inventory | 24 |
| Rugmakers' supplies | 23 |
| Rugmaking apparatus | 19 |
| Rugmaking fiber | 15 |
| Rugrat | 6 |
| Rugrat minder | 13 |
| Rugrat's break | 18 |
| Rugrats | 7 |
| Rugrats' outbursts | 22 |
| Rugs | 4 |
| Rugs from Sweden | 16 |
| Rugs unlikely to be owned by vegans | 35 |
| Ruhr Basin city | 15 |
| Ruhr center | 11 |
| Ruhr city | 9 |
| Ruhr hub | 8 |
| Ruhr industrial center | 22 |
| Ruhr industrial city | 20 |
| Ruhr industrial hub | 19 |
| Ruhr Museum locale | 18 |
| Ruhr native: Abbr. | 18 |
| Ruhr pronouns | 13 |
| Ruhr refrigerant | 16 |
| Ruhr refusal | 12 |
| Ruhr refusals | 13 |
| Ruhr region | 11 |
| Ruhr rejection | 14 |
| Ruhr rejections | 15 |
| Ruhr River city | 15 |
| Ruhr River valley city | 22 |
| Ruhr rivet | 10 |
| Ruhr road | 9 |
| Ruhr rodent | 11 |
| Ruhr roe | 8 |
| Ruhr steel center | 17 |
| Ruhr Valley city | 16 |
| Ruhr Valley hub | 15 |
| Ruhr Valley industrial center | 29 |
| Ruhr Valley industrial city | 27 |
| Ruhr Valley metropolis | 22 |
| Ruhr yield | 10 |
| Ruhr-al city? | 13 |
| Ruin | 4 |
| Ruin + a Crusader's foe = ? | 31 |
| Ruin ... or great success | 25 |
| Ruin a birdie | 13 |
| Ruin a bow | 10 |
| Ruin a good checkers move? | 26 |
| Ruin a martini, to 007 | 22 |
| Ruin a relationship with | 24 |
| Ruin a reputation | 17 |
| Ruin a shot, in a way | 21 |
| Ruin a surprise | 15 |
| Ruin big-time | 13 |
| Ruin bit by bit, with "at" | 36 |
| Ruin Bond's martini | 23 |
| Ruin Bond's martini? | 24 |
| Ruin by clumsiness | 18 |
| Ruin clumsily | 13 |
| Ruin James Bond's martini? | 30 |
| Ruin morally | 12 |
| Ruin of a statue, perhaps | 25 |