There are 16 11-letter words that start with 'rou'.
| roughdrying | roughhewing | roughhoused |
| roughhouses | roughnecked | roughnesses |
| roughriders | roundabouts | roundedness |
| roundheaded | roundhouses | roundnesses |
| roundtables | rouseabouts | roustabouts |
| routinizing | ||
Note: These 16 11-letter words that start with 'rou' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with roug, roun, rout, rous, roul, roup, roue, roub, rouc, roui, roux.
4-letter words start with 'rou' (4)