11 letters
- perceptions21
- percolation19
- perennating19
- perennation17
- perfections21
- peritoneums19
- permanences22
- permeations18
- permutation19
- perorations15
- persecuting21
- persecution19
- personating18
- personation16
- personative19
- pertinences19
- petulancies20
- phenacetins21
- phenomenons22
- pianofortes18
- planimeters19
- pneumonitis20
- pococurante22
- portamentos18
- positronium19
- praemunires19
- pratincoles19
- preachments23
- preannounce21
- precautions19
- precomputes24
- preconquest28
- predicament22
- predominant20
- predominate19
- preemptions21
- preenacting21
- prefinances22
- pregnancies21
- prelections19
- premoistens18
- premonition19
- premunition20
- prenominate19
- preromantic21
- presumption22
- pretensions16
- pretentious16
- preventions20
- procreation18
- procrustean19
- proctodaeum22
- procuration19
- procurement22
- productions20
- projections27
- prominences22
- pronouncers20
- pronouncing23
- propionates18
- prosceniums22
- prosecuting21
- prosecution19
- protections18
- proteinases15
- protohumans21
- provenances23
- pteranodons17
- punctations20
- purtenances20
- putrescines19
- pycnometers23
- pyromancies23
- quaternions23
- recombinant22
- recomposing23
- recomputing24
- reconnoiter16
- reconnoitre16
- recoupments22
- recreations15
- redemptions19
- reeducation17
- reinoculate17
- reinsurance17
- relocations16
- reminiscent19
- remittances18
- rencounters17
- renominated17
- renominates16
- renovations17
- renunciates17
- reoperation15
- repentances19
- repugnances22
- reputations16
- rescindment20
- resumptions19
- retinoscopy20
- revocations19
- romanticise18
- ruminations17
- salinometer16
- scopolamine22
- sempiternal19
- septenarius16
- septentrion16
- speculation20
- spermacetis20
- spirochaete19
- spontaneous17
- sporulation17
- subornation17
- superinfect22
- superintend18
- superjacent28
- supernation17
- supertonics19
- supremacies21
- supremacist21
- syncopation21
- tambourines19
- taphonomies20
- temerarious15
- temperances21
- temporaries17
- tendencious18
- tenpounders18
- thermoscope22
- tonometries15
- tourmalines17
- tournaments17
- trampolines19
- transection16
- transiences16
- transpierce18
- truepennies17
- truncations17
- trypanosome20
- turpentines17
- ulcerations17
- uncaptioned21
- uncommonest23
- unemotional18
- unimportant20
- uninspected21
- unmentioned19
- unmonitored18
- unreasoning17
- unrepentant18
- urinometers16
- venerations17