realm renew remove remote remind remedy remarkable remember remark reluctant religion remain rely relieve reliable relevant release relax relative relationship relation relate reject reinforce reign regulation regulate regularity regular regret register regional region regime regardless regarding regard refuse refrigerator refugee refresh reform reflect refine reference recreation refer reduce red recover recorder record reconciliation reconcile recommend recognize recite reception recent receive receipt recall rebel reassure reasonable reason rear realize realization real reality realism ready read reaction react reach ray raw ratio rare rather rate rat rarely rapid rank range random rally raise rainy rainfall rainbow railway rail rag radio rain railroad radicalism rage radical radar racism racial race rabbit ruthless rust Russian rush rural rumor ruler Russia ruin rule rubber rude rubbish row rub royalty royal routine route round rotten rot rose rope root rough roof romance Roman roll role rocket romantic rock robot robbery rob roast roar road river rivalry rival risk rise ripe ring right ride rid rich rice rhythm revolve reward revolutionary revolution revive revise review reverse revenue revenge reveal reunion reunification return retire retain result resume restrict retreat retail restrain restore restless restaurant rest responsible respond responsibility respective respectful response respectable respect resource resort resolve resolution resistance resident resist resignation resign residence reserve resent resemble rescue require request research reputation republican republic reproduce repression representative represent reporter replace repeat repeal rent report reply repeatedly repair