is a reinterpretation is a related is a relation is a relational is a relational database is a relationship is a relative is a relative concept is a relative term is a relatively is a relatively common is a relatively easy is a relatively high is a relatively inexpensive is a relatively large is a relatively new is a relatively new concept is a relatively new phenomenon is a relatively rare is a relatively recent is a relatively slow is a relatively small is a relaxation is a relaxed is a relay is a release is a relevant is a reliable is a reliable source is a relic is a relief is a religion is a religion of peace is a religious is a religious experience is a remarkable is a remarkable achievement is a remarkable example is a remarkable thing is a remarkable woman is a reminder of how is a remix is a remix album is a remnant is a remote is a remote control is a removable is a renaissance is a renal is a rendering is a renewable is a renewable energy is a renewable resource is a renewal is a renewed is a renowned is a rental is a repair is a repeat is a repetition is a repetitive is a replacement is a replica is a reply is a report is a reported is a reporter is a repository is a representation is a representative is a representative democracy is a representative example is a reptile is a republic is a republican is a reputable is a reputation is a request is a required is a required field is a requirement is a rescue is a research is a research assistant is a research associate is a research fellow is a research institute is a research project is a research scientist is a researcher is a reseller is a reservation is a reserve is a reserved is a reservoir is a residence is a resident is a residential is a residential area