10 letters
- ownerships19
- percussion18
- permission17
- pernicious18
- persimmons20
- pessimisms19
- pessimists16
- pheromones19
- pianissimo17
- poeticisms19
- poornesses14
- porosities13
- porousness15
- poshnesses16
- possessing16
- possession14
- possessors13
- possessory15
- postcrises16
- postcrisis16
- precession17
- precisians17
- precisions17
- prehominid20
- preschools19
- pressrooms16
- previsions18
- primnesses17
- princedoms21
- princeship22
- princesses17
- prissiness14
- processing19
- procession17
- processors16
- profession17
- proscenium21
- prosimians17
- prosthesis15
- provisions18
- recessions14
- rechoosing18
- recomposes19
- reemission14
- reimposing19
- reminisces17
- remissions14
- remissness14
- reposition14
- rescission14
- rhinoceros16
- rhinoscopy21
- rhodopsins17
- richnesses16
- riminesses14
- rimosities13
- ropinesses14
- rosinesses11
- sarcosomes16
- scammonies20
- schmoosing21
- scientisms17
- scissoring16
- scrimpiest19
- secessions14
- semicolons18
- semitropic19
- sensoriums15
- seriocomic19
- shampooers18
- shimmering21
- shipowners19
- shrimpiest18
- signiories13
- skimpiness21
- skirmishes19
- smarminess17
- smoothness16
- snowshoers16
- solipsisms17
- sonorities11
- sophomores18
- sophomoric21
- soporifics19
- speciesism19
- sphincters19
- spiritisms16
- spookiness18
- spoonerism17
- sporicides17
- sporogenic19
- sportiness14
- stonecrops17
- storeships15
- storminess14
- sunporches20
- superminis18
- supersonic18
- suspensors15
- suspicions18
- symphonies21
- thermionic19
- topcrosses16
- uroscopies17