racket radar radical radio raft railroad railway raise rally range rank rapport rarely rate rating ratio rationalization rationalize raw reach react reaction realise reality realize reallocate rearrange reason reasonable reassessment rebate rebound recall receipt receive receiver receivership recent reception receptive recertification recession recipe recipient reclaim recognise recognition recognize recommend recommendation record recoup recover recovery recruit recruitment red redeem reduction redundancy redundant reference refresh refresher refreshment refund refurbish refurbishment refuse region regional register registered registration regret regular regularly regulate regulation regulator regulatory reimburse reimbursement reinforce reinsure reject relationship relative relatively release relevance relevant reliable relief relocate reluctant remain remainder remedy remission remit remunerate remuneration remunerative render renew renovate rent reorientate Rep repair repeal replace replenish reply report reposition represent representative reputation request required requirement requisite requisition rescind research resent resentful reservation reserve reshuffle resign resilient resistance resolve resource respect respond respondent response responsibility responsible restaurant restore result results retail retailer retain retention reticent retire retreat retrench retrospect return revaluate revaluation revamp reveal revenue reverse revert review revise revocable reward rewarding rework rider rigid rigor rigour ripe rise risk risky ritual rival riverboat role roll room round route routine royalty RSVP rub rubber rule rumour run runaway running