| ra | range (1639), rate (650), raw (339), railway (261), rating (202), rain (192), radio (189), ray (168), race (159), rare (140), rail (127), rapidly (111), rank (84) 17 more keywords » |
| re | reference (1684), resource (1637), result (1629), real (1627), request (1343), recent (1303), registration (1235), research (1178), renovation (1153), restoration (984), restaurant (983), requirement (962), ready (951) 173 more keywords » |
| rh | rhoncus (153), rhythm (61) |
| ri | right (4366), risk (451), rich (412), river (315), risus (244), ride (207), rice (94), rise (75), ritual (62), rigid (35), riverside (35), ribbon (34), rim (26) 7 more keywords » |
| rn | rna (12) |
| ro | room (1547), road (682), role (594), round (450), route (333), root (279), romania (254), roof (191), romantic (181), routine (152), row (131), romanian (129), robust (126) 15 more keywords » |
| ru | rule (569), run (273), russian (234), rutrum (151), russia (110), rural (109), rubber (103), ruin (66), rush (66), rustic (41), rust (28), rug (18) |
| r. | r. (45) |