| rubicund | rubicondo |
| rubicundity | rossore |
| rubidium | rubidio |
| Rubidium chloride | Cloruro di rubidio |
| Rubielos de Mora | Rubielos de Mora |
| Rubigen | Rubigen |
| Rubin | Rubino |
| Rubin Design Bureau | Rubino |
| RuBisCO | Ribulosio-bifosfato carbossilasi |
| Rubiá | Rubiá |
| ruble | rublo |
| rubric | rubrica |
| Rubrication | Rubricazione |
| Rubrouck | Rubrouck |
| Rubtsovsk | Rubcovsk |
| Rubus | Rubus |
| Rubus idaeus | Rubus idaeus |
| ruby | rubino |
| Ruby character | Ruby |
| ruby coloured | rosso vino |
| Ruby Programming | Ruby |
| Rubén Berríos | Rubén Berríos |
| Rubén Darío | Rubén Darío |
| Rubén Sosa | Rubén Sosa |
| Rubí | Rubino |
| Ruch Chorzów | Ruch Chorzów |
| ruck | mucchio |
| rucksack | zaino |
| ruckus | putiferio |
| ruction | sommossa |
| rud | maleducato |
| Rud Hud Hudibras | Rud Hud Hudibras |
| Ruda Śląska | Ruda Śląska |
| Rudamun | Usermaatra |
| Rudbjerg | Rudbjerg |
| Rudd | Scardinius erythrophthalmus |
| Ruddells Mills | Ruddells Mills |
| rudder | guida |
| rudder fish | pesce pilota |
| rudder indicator | assiometro |
| rudder pintle | agugliotto |
| ruddily | rossastro |
| ruddiness | rossore |
| ruddy | rosso |
| rude | osceno |
| Rude boy | Rude Boy |
| rude reply | rimbeccata |
| Rude thing | Sguaiatezza |
| Rude word | Puglia |
| rudely | zotico |
| Rudelzhausen | Rudelzhausen |
| rudeness | rudezza |
| ruderal | ruderale |
| Ruderatshofen | Ruderatshofen |
| Rudersberg | Rudersberg |
| Rudersdal municipality | Rudersdal |
| Rudersdorf | Rudersdorf |
| Ruderting | Ruderting |
| Rudi Dornbusch | Rudi Dornbusch |
| Rudi Fischer | Rudi Fischer |
| Rudi Völler | Rudi Völler |
| rudiment | rudimenti |
| rudimental | elementare |
| rudimentary | elementare |
| rudiments | rudimenti |
| Rudkøbing municipality | Rudkøbing |
