10 letters
- retentions12
- retraining14
- retransfer14
- retrofires13
- reunionist13
- rhinestone14
- rinderpest15
- ripsnorter14
- roisterers10
- roistering13
- rotisserie10
- ruinations13
- saponifier17
- sapphirine19
- scriptoria16
- senatorian12
- separation14
- septenarii14
- septennial16
- serotonins12
- serpentine15
- serrations11
- slipperier17
- snippetier17
- sonication15
- sonorities11
- sopraninos15
- sororities10
- sparteines14
- speciation17
- spinnerets15
- spinneries15
- spirometer16
- spoliation15
- stainproof17
- stentorian12
- stepparent17
- stoppering19
- supination16
- tangerines14
- teliospore14
- tenantries12
- tensioners12
- terpenoids15
- terpineols15
- terrorised11
- terrorises10
- terrorizes19
- tertiaries10
- tetraspore13
- threonines14
- transferor14
- transience15
- transition12
- transpired15
- transpires14
- transposon15
- treponemas17
- tretinoins12
- triennials13
- tripinnate15
- tristearin11
- tropopause17
- uraninites13
- urinations13
- vanitories15
- veneration16
- venerators15
- veratrines15
- vernations16
- waitperson17
- weaponries17
- wiretapper19