rock razor react robust reach ray robot robbery robe raw rob rationalize roast roar rational road rat-race ration river ratio rival rating ritual rate rather risk rise rat race ratal rat ring rash rip ripe riot rarely rim rare rapid rigorous rigid rape right rap rifle ransom ridiculous rank ridge range ride rid random riddle rally rake rich raise rice rainy ribbon rainfall rib raincoat rhythm rainbow rain revolve railroad revolutionary rail revolution reward revolt rage raid revive rag revise radioactive radius radical review revenge reverse radio revenue radiate reveal radar rack retrieve radiant return retrospect racial retreat retire race retell retort rabbit retirement retain retailer retail resume resultant result restrict restraint restrain restore restless restaurant rest responsible responsibility response respond respective respectful resort resolution respect resolute resource resistant resolve resident residence reservoir reservation resign resistance reserve resist resemble resent researcher resemblance research rescue requisition requirement require request reputation republican republic reproach repression representative represent reptile reproduce reporter report reply replacement replace repetition repertoire repel repeatedly repair repeat rent renovate repayment repay renewal rental render renaissance removal remote renew remnant remitter remove remittee remittance remit reminder remind remember remedy remarkable remark remainder remain rely reluctant religious religion relieve relief reliance reliable reliability relevant release relay relax relationship relation related relativity relative relate rejoice reject reinforce rein reimbursement reign rehearsal regulation regulate regular regret register region regarding regard regime regardless refute refusal refuse refund refugee refuge refrigerator refreshment refresh refrain reformer reform reflection reflect refine reference referee refer reel reeducate redundant reduction reduce recycle recur rectify rectangle red recreation record recruit recovery reconcile recover recorder ruthless recommendation rust recommend Russian Russia recollect rush recognize rural recognition ruler reckless reclaim rumor reckon rule recite ruin reciprocal rug recipient recipe rude ruby recession rubbish reception rubber recent rub receiver royalty receive royal receivable row receipt routine recede route recall rebuild rouse roundsman rebellion roundabout rebel rotten round rebate rough reasonable reassure rotate reason reap rot rose rotary rear realty rope realm root really room realize roof realistic reality romantic romance real Roman ready roll role readily reading reader ROI rod read rocket reaction