There are thousands of English words starting with “ro” (a very common beginning, often related to concepts like motion, sound, covering, or strength). Major dictionaries (e.g., Merriam-Webster, Scrabble lists, The Free Dictionary) show around 700–3,900+, depending on whether you include rare/technical terms, inflections, or compounds. Scrabble-valid ones number about 726.
Here are many common and useful examples, grouped by approximate length for easier reading:
Very common short words (3–5 letters)
- rob
- rod
- roe
- rot
- row
- road
- roam
- roan
- roar
- robe
- rock
- role
- roll
- roof
- rook
- room
- root
- rose
- roach
- roads
- roams
- roars
- roast
- robin
- robot
- rocky
- rodeo
Common 6-letter words
- rocket
- rodent
- roller
- romance
- rotten
- rotate
- router
- rounds
- royal
- robust
- roving
- rotted
- roasts
- robbed
- roving
Common 7-letter words
- routine
- rollout
- royalty
- rounded
- romance
- robbery
- roaring
- rocking
- roasted
- robbery
- rotator
- rosette
- rowboat
- rostrum
Common longer ones (8+ letters)
- romantic
- rotation
- robbery
- roadside
- roadmap
- robotics
- roentgen
- robustness
- roundabout
- rocketing
- rollover
- roommate
- rosemary
- roentgen
- romanticize
Fun or notable ones
- robot
- rocket
- romance
- rogue
- rollercoaster (compound)
- roguish
- rooftop
- rowdy
- rotten
- royal