11 letters
- inerrancies16
- infarctions19
- inferiority17
- infestation16
- infiltrates16
- infiltrator16
- infirmaries18
- informatics21
- infractions19
- inoperative19
- inscription19
- inscriptive22
- insectaries15
- insecticide19
- insectivore19
- inspiration16
- inspirators15
- inspiratory17
- integrators14
- integrities14
- intensifier16
- interaction16
- interactive19
- interatomic18
- intercepter18
- interceptor18
- intercessor15
- intercostal16
- intercourse16
- intercrater15
- interdictor16
- interferons16
- intergrafts17
- interiorise12
- interiority14
- interiorize21
- interjector24
- interlopers16
- interoffice21
- interparish17
- interpoints16
- interpolate16
- interposers15
- interrogate14
- interspaced19
- interspaces18
- interstices15
- interstrain13
- intestacies15
- intoxicates22
- intricacies18
- introspects18
- irrealities12
- irredentist13
- irrigations14
- irritations12
- isoelectric18
- itineraries12
- itineration13
- licentiates16
- linearities13
- literations13
- marionettes15
- martensitic18
- maternities15
- meritocrats17
- metacentric21
- metafiction21
- meteoritics17
- metrication18
- miscitation18
- miscreation18
- narcoleptic22
- natriuretic16
- neocortices18
- nitpickiest22
- nociceptive25
- nonartistic16
- nonreceipts19
- nonspecific25
- northeaster14
- notorieties12
- officiaries20
- orchestrate16
- ordinariest13
- orientalist13
- pacesetting20
- pacificator23
- pacificists23
- pantheistic20
- parcenaries18
- parenthetic20
- paresthetic19
- parishioner17
- parotitises14
- partitioned16
- partitioner15
- parturients16
- parturition16
- paternities15
- paternoster15
- patriciates17
- patrimonies18
- peacockiest24
- pectination19
- penetration16
- pentarchies20
- perceptions21
- percipients21
- perestroika18
- perfections21
- perforating20
- perforation18
- performance24
- peridotites15
- peridotitic18
- periostitis14
- peripatetic20
- peristaltic18
- peritonitis15
- permeations18
- perorations15
- persecution19
- personative19
- personified19
- personifier18
- personifies18
- pertinacity20
- petitionary17
- petitioners15
- pheneticist20
- pianofortes18
- pinfeathers20
- pituitaries15
- pleinairist16
- poinsettias15
- politicians19
- pontificals22
- pontificate21
- portraitist14
- postconcert21
- posterities14
- potentiates15
- praetorians15
- pratincoles19
- preachifies22
- precautions19
- precipitant21
- precipitate20
- precipitins21
- precocities20
- preconcerts21
- precreasing20
- precritical21
- predacities18
- predication19
- predictions19
- prefinances22
- prefrontals19
- prehistoric19
- prelections19
- prenotified19
- prenotifies18
- preromantic21
- pretentious16
- pretreating17
- prettifiers17
- princeliest19
- prioritizes23
- procreating20
- procreation18
- procreative21
- procrustean19
- profanities18
- proficiency26
- proficients21
- proliferate18
- propitiates17
- proprieties17
- prostrating17
- prostration15
- protectants18
- protections18
- protectress17
- proteinases15
- proteinuria16
- protractile18
- protracting20
- protraction18
- protractive21
- protreptics20
- pruriencies19
- psittacines18
- psittacotic20
- purificator21
- rainforests15
- rancidities16
- rarefaction18
- ratiocinate15
- reaccepting23