There are 27 4-letter words that start with 'ru'.
| rube | rubs | ruby | ruck | rudd |
| rude | rued | ruer | rues | ruff |
| ruga | rugs | ruin | rule | ruly |
| rump | rums | rune | rung | runs |
| runt | ruse | rush | rusk | rust |
| ruth | ruts | |||
Note: These 27 4-letter words that start with 'ru' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with rub, rum, rus, run, rud, rug, rut, ruf, ruc, rur, rui, rul, rue, rup, rua.
3-letter words start with 'ru' (6)