11 letters
- nightscopes22
- octahedrons18
- organicists17
- orthopaedic20
- orthopedics20
- orthostatic16
- osteopathic19
- ostracising17
- pacesetting20
- pantheistic20
- parenthetic20
- paresthetic19
- pentarchies20
- petticoated18
- pheneticist20
- photostatic19
- preachiness20
- predacities18
- predicating21
- predication19
- predictions19
- pathfinders21
- personified19
- personifies18
- pianofortes18
- pinfeathers20
- prenotified19
- prenotifies18
- operagoings19
- leaderships18
- legateships19
- legionaries15
- lionhearted16
- lipogenesis18
- lipreadings19
- literations13
- neorealists13
- orientalist13
- pathologies19
- pathologist19
- patternless16
- pedestaling19
- pedologists18
- penologists18
- periodontal17
- personalise16
- personalist16
- petrologies17
- petrologist17
- phenologies20
- phlogistons20
- pigeonholed21
- pigeonholer20
- pigeonholes20
- plaistering18
- plasterings18
- poltergeist17
- portionless16
- maisonettes15
- marionettes15
- martensites15
- maternities15
- meditations16
- mentorships20
- mesonephroi20
- mesonephros20
- metanephroi20
- metanephros20
- methodising20
- misanthrope20
- misdiagnose18
- misoriented16
- misphrasing22
- misstarting17
- missteering17
- mistreating17
- mithridates17
- moderations16
- modernities16
- monasteries15
- monetarists15
- monitorship20
- monographed23
- monophagies22
- monotheists17
- nephrostome20
- optometries17
- optometrist17
- parsimonies18
- patrimonies18
- patriotisms17
- permeations18
- photometers19
- portamentos18
- predominate19
- prehominids21
- premoistens18
- premonished21
- premonishes20
- negotiation15
- nightstands18
- nitrogenase15
- nonsteroids14
- ontogenesis15
- opinionated17
- ordinations14
- orientating15
- orientation13
- ostentation13
- patronising18
- patternings18
- penetrating18
- penetration16
- pentahedron19
- personating18
- personation16
- pointedness17
- posttension16
- prednisones17
- prehensions18
- northeaster14
- ordinariest13
- originators14
- ornithopter17
- orographies18
- orthopteran17
- parishioner17
- partitioner15
- paternoster15
- perorations15
- personators15
- portraitist14
- prehearings19
- outdressing16
- outpatients16
- outpressing18
- outspeeding19
- outsprinted17
- outstarting15
- outstations13
- outsteering15
- outstriding16
- pasteurised16
- pirouetting18
- poussetting18
- prestigious17
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