regarding regard right rifle ridiculous ridge ride riddle rid rich rice ribbon rib rhythm reward revolve revise review revolutionary revolution reverse revolt revive revenue revenge retreat resume resultant reveal retire retain retail result restriction restrict restraint restrain restore restless restaurant responsible rest responsibility response respond respective respectful respectable respect resource resort resolve resolution resolute resistant resistance resist resignation resign residence reservation resident reservoir reserve resent resemble resemblance research rescue require reputation republican republic reptile reproduce represent reporter reproach representative representation reply report replacement replace repetition repent request repel repeatedly repay rent renovate render repeat repair remove renew removal remote remind remember remedy remarkable remark remains remainder remain rely reluctant religious religion relief relieve relic reliance reliable reliability relevant release relax relay relativity relative relate rejoice relationship reject reinforce relation reign rehearsal regulation regulate regularity regular regret register region regime regenerative regardless refute refuse reflection refusal refrigerator refreshment reform refresh refinery reflect refine refer reel reed reduce reference red reduction rectify recruit recreation recovery recover recorder record reconcile recommend recollect recognize recognition reclaim reckon recite reciprocal recipe reception recent receive recall receipt rebellion rebel reasonable reason rear reap realm really realize realization reality realistic real ready reading ruthless readily rust reader Russian read Russia rush react rural reactor reach razor rumour ray raw ruler rule rational ruin ratio rude rug rather rate ruby rat rubbish rub rarely rubber rare rapidity royalty rapid royal rank row range routine random route rally rouse rake roundabout round raise raincoat rough rotten rain rotate railroad rotary rainbow rot rail raid rose rage rope rag root radius room radium romantic radioactive romance roof radioactivity radio Roman radiator roll role rocket radiate rod radar racket racial robot robe race rock rack radical robbery rabbit rob roast roar road river robber rival risk rise ripe rim rigid ripen ring