10 letters
- notepapers17
- novitiates15
- octahedron17
- octonaries14
- odometries14
- oenophiles17
- oleographs18
- omophagies20
- ontogenies14
- openhanded19
- operagoers15
- operagoing18
- operations14
- operatives17
- operettist13
- ophiuroids17
- opsonified18
- orangeades14
- orangeries13
- ordinaries12
- ordination13
- organicist16
- orientated12
- orientates11
- originated14
- originates13
- originator13
- ornithines14
- ornithopod17
- ornithoses13
- ornithosis13
- orogenesis13
- orogenetic16
- orphanages18
- orthoepies15
- orthoepist15
- orthograde15
- orthopedic19
- orthoptera15
- orthotists12
- osteitides11
- ostensoria11
- osteogenic16
- osteopaths15
- osteopathy17
- outhearing16
- outhitting16
- outpainted16
- outpatient15
- outpointed16
- outraising14
- outreading15
- outsitting14
- outsoaring14
- outstaring14
- outstarted12
- outstating14
- outstation12
- outtrading15
- ovaritides15
- overdesign18
- overdosage17
- overdosing18
- overeating17
- overgoaded18
- overhanded19
- overhating19
- overhoping22
- overnights19
- overpotent18
- overstated15
- oviposited18
- oxidations19
- paedogenic20
- pandowdies19
- panegyrist18
- panettones15
- pantheists16
- pantsuited16
- parasitoid14
- parathions16
- parentages16
- parenthood17
- parentings17
- pargetting18
- parodistic17
- partitions14
- partridges16
- pathfinder20
- pathogenic21
- patientest14
- patisserie13
- patricides17
- patriotism16
- patronages16
- patronised15
- patronises14
- patronized24
- patronizes23
- patterning17
- peashooter15
- pedagogies18
- pedantries15
- pederastic17
- pedestrian15
- pediatrics17
- pediatrist14
- pedologies17
- pedologist17
- pegmatites18
- penalities15
- penetrants15
- penetrated15
- penetrates14
- penholders18
- penologies17
- penologist17
- pentahedra17
- pentoxides22
- perditions15
- pereiopods17
- peridotite14
- perigynies18
- perihelion17
- periosteal14
- perithecia18
- peritoneal15
- permeating19
- permeation17
- permitting19
- perorating16
- peroration14
- peroxidase21
- peroxiding24
- persistent14
- persisting16
- personages16
- personated15
- personates14
- personator14
- personhood17
- persuading18
- pertaining17
- petalodies15
- petitioned15
- petitioner14
- petticoats16
- phantasied17
- phenacites19
- phenakites20
- phenolated18
- phenolates17
- phenoxides24
- pheromones19
- philanders18
- philtering19
- phlogiston19
- phonations17
- phonograms21
- phonolites17
- photodiode17
- photogenic21
- photograms20
- photometer18
- photostats15
- phototaxes22
- phototaxis22
- pianoforte17
- picarooned18
- pigeonhole19
- pigeonites16
- pinfeather19
- pinsetters14
- pinspotter17
- pinstriped18
- pioneering17
- pirouetted15
- pirouettes14
- pistareens14
- plaistered15
- planetoids16
- plastering17
- podiatries14
- podiatrist14
- poetasters13
- poinsettia14
- polarising17
- polarities14
- ponderosas15
- poniarding18
- porosities13
- portamenti17
- portamento17
- portending18
- portentous15
- porterages15
- portioning17
- positional15
- positioned15
- postdating17