How many words start with RO?

127, from 5 letters up to 5. All of them are on this page.

What is the highest scoring word that start with RO?

ROJAK at 16 points in Scrabble, and ROJAK at 18 in Words With Friends, because the two games score the tiles differently.

ROACH, ROADS, ROAMS, ROANS, ROARS, ROARY, ROAST, ROATE, ROBED, ROBES and 117 more on this page.

127 of them: ROACH, ROADS, ROAMS, ROANS, ROARS, ROARY, ROAST, ROATE, ROBED, ROBES and more.

Most common words first, then the rest A to Z.

The most familiar words on this page and what they mean. Tap any word for its full entry, score and anagrams.

ROOMS noun apartment consisting of a series of connected rooms used as a living unit (as in a hotel)
ROUND noun a charge of ammunition for a single shot
ROYAL adjective of or relating to or indicative of or issued or performed by a king or queen or other monarch
ROUTE verb send documents or materials to appropriate destinations
ROMAN noun a typeface used in ancient Roman inscriptions
ROADS noun a partly sheltered anchorage
ROSES noun form of ROSE: any of many shrubs of the genus Rosa that bear roses
ROLES noun form of ROLE: the actions and activities assigned to or required or expected of a person or group
ROBOT noun a mechanism that can move automatically
ROOTS noun the condition of belonging to a particular place or group by virtue of social or ethnic or cultural lineage

Definitions from Open English WordNet, CC BY 4.0.

All of them: Word lists.