Words beginning with R. Ready to rock the night away with the most rockabilly rootin'-tootin' letter of them all? It's the letter R! Words starting with R are rarely appreciated for their reliability and can be really useful when beating your competitors. Improve your letter R with our guide to the letter R: words beginning with R! Rhetorical question; do you think you should check these lists too: words that end in R and words with R? Get ready Words with Friends and Scrabble!