11 letters
- propraetors17
- proprietary19
- proprieties17
- proprietors17
- prosthetics19
- prosthetist16
- protoplanet19
- psychometry26
- pycnometers23
- pyrethroids19
- pyrometries19
- quadruplets27
- quietnesses22
- quintuplets27
- racetracker21
- racketeered19
- racquetball29
- radiometers15
- radiometric18
- rambouillet20
- rattletraps15
- recarpeting20
- redetermine16
- regretfully21
- regrettable17
- regrettably19
- reinterpret15
- rejacketing30
- relettering15
- remarketing21
- remonetized25
- remonetizes24
- repetitions15
- repetitious15
- repleteness16
- resketching23
- retailoring15
- retaliating15
- retaliation13
- retaliative16
- retaliatory14
- retardation13
- retargeting16
- retempering20
- retentively19
- retentivity18
- retexturing22
- rethreading17
- reticencies18
- reticulated17
- reticulates16
- retightened17
- retinaculum21
- retinitides13
- retinopathy19
- retinoscopy20
- retiredness13
- retirements15
- retractable18
- retractions15
- retrainable16
- retransfers15
- retransform18
- retranslate13
- retransmits15
- retreatants12
- retrenching20
- retribution16
- retributive19
- retributory17
- retrievable19
- retroacting17
- retroaction15
- retroactive18
- retroceding18
- retrodicted16
- retrofiring17
- retrofitted15
- retrograded15
- retrogrades14
- retrorocket18
- retrospects17
- returnables17
- revegetated18
- revegetates17
- rhetorician17
- rickettsiae18
- rickettsial19
- rickettsias18
- ricocheting22
- ricochetted20
- russettings15
- saddletrees14
- salinometer16
- sclerometer18
- secretarial15
- secretariat14
- secretaries14
- secretively21
- seismometer17
- seismometry19
- semilethals18
- semiretired15
- sermonettes15
- settlements16
- seventieths18
- shibboleths22
- sidetracked20
- silhouetted16
- silhouettes15
- sinfonietta16
- singletrees15
- skeletonise17
- skeletonize26
- sketchbooks27
- sketchiness21
- skyrocketed25
- snippetiest18
- sociometric20
- somerseting17
- somersetted15
- soubriquets25
- sovietizing27
- spaghettini19
- speedometer18
- spermacetis20
- spherometer19
- spinnerette16
- spirochaete19
- spirochetal20
- spirochetes19
- spirometers17
- spirometric20
- spreadsheet17
- squeteagues24
- stethoscope19
- stilettoing15
- stockinette19
- streetlamps18
- streetlight16
- streetscape17
- stretchable20
- stretchiest16
- sublethally22
- subnetworks23
- suffragette20
- sulfureting20
- sulfuretted18
- supermarket22
- supersecret18
- suppletions20
- suretyships19
- sweetbreads18
- sweetbriars17
- sweetbriers17
- sweetenings18
- sweethearts16
- sweetnesses15
- swingletree18
- symmetrical23
- symmetrized29
- symmetrizes28
- sympathetic24
- sympetalies20
- sympetalous21
- syncretised18
- syncretises17
- syncretisms20
- syncretists17
- syncretized27
- syncretizes26
- synesthetic19
- synthetases16
- tachometers19
- tattletales13
- technetiums21
- teeterboard15
- teethridges16
- teetotalers12
- teetotaling15
- teetotalism15
- teetotalist12
- teetotalled14
- teetotaller13
- telekinetic20
- telemetered16
- telemetries15
- tensiometer15
- tensiometry17
- tetanically19
- tetherballs18
- tetracaines15
- tetrachords17
- tetradrachm20
- tetrahedral15
- tetrahedron15
- tetrahymena19
- tetralogies14
- tetramerous15
- tetrameters14