8 letters
- refasten12
- reincite12
- reinfect15
- resinate9
- resonant10
- resonate9
- rotenone10
- sainfoin13
- sanction13
- sarcenet12
- scantier12
- scenario12
- seafront12
- secretin12
- seicento12
- senorita9
- serotine9
- sinfonia13
- sinfonie13
- sirenian10
- snootier9
- softener12
- sonantic13
- sonatine10
- sonicate12
- sonorant10
- soricine12
- stearine9
- tacrines12
- tenoners10
- ternions10
- trainees9
- triennia10