- rhinoviruses20
- rhizoctonias27
- rhizospheres28
- rhododendron19
- rhodomontade20
- rhombohedral24
- rhombohedron24
- rhythmically28
- ribbonfishes24
- ribonuclease21
- ricochetting23
- ridiculously22
- rightfulness22
- rigorousness16
- risibilities16
- risorgimento18
- roadblocking27
- roadholdings20
- robotization25
- robustiously20
- robustnesses17
- rockabillies24
- rockhounding27
- rodenticides18
- rodomontades18
- roisterously16
- romanization26
- romantically23
- romanticised20
- romanticises19
- romanticisms22
- romanticists19
- romanticized29
- romanticizes28
- rootednesses14
- rootlessness14
- ropedancings23
- rotogravures19
- rottennesses14
- rottenstones14
- rotundnesses16
- roughcasting23
- roughhousing23
- rowanberries19
- rubbernecked28
- rubbernecker27
- rubefacients23
- rubrications20
- ruefulnesses19
- ruggednesses19
- ruminatively24
- rumormongers22
- rustications17
- rustproofing22
- ruthlessness17