| Referendum | referendum |
| Referendar | student teacher trainee teacher |
| Referentin | speaker |
| Referent | speaker |
| Referenz | reference |
| Referenzbuch | reference book |
| Referee | referee |
| Referendarin | student teacher trainee teacher |
| Reverenz | reverence |
| Definiendum | definiendum |
| Redewendung | phrase locution idiom figure of speech |
| Memorandum | memorandum |
| Refektorium | refectory |
| Referrer | referrer |
| reffen | reef |
| Referat | report lecture presentation talk paper project department division unit |
| Reform | reform |
| Refugium | refuge |
| referieren | refer |
| treffend | appropriate pertinent |