10 letters
- numeracies18
- numismatic21
- obeisances17
- octameters16
- octarchies18
- octonaries14
- omniscient18
- onomastics17
- orchestras15
- orchitises15
- organicism19
- organicist16
- organismic19
- orientates11
- orienteers11
- originates13
- ornateness12
- ornithines14
- ornithoses13
- ornithosis13
- osmeterium17
- osmometers16
- osmometric19
- ostensoria11
- ostracised14
- ostracises13
- ostracisms16
- ostracizes22
- outmarches19
- outreaches16
- outschemes19
- pantheisms19
- pantomimes20
- pantomimic23
- parchments22
- pasticcios19
- patchiness19
- patisserie13
- patronises14
- peacetimes19
- peristomes16
- perithecia18
- permeation17
- permission17
- persimmons20
- personates14
- phenacites19
- phonematic22
- pistachios18
- pistareens14
- poeticisms19
- preachiest18
- preachment22
- precession17
- precisians17
- precisions17
- premeiotic19
- premoisten17
- prescience20
- presentism17
- prosimians17
- protamines17
- proteinase14
- psoriatics16
- racehorses15
- rachitides16
- racinesses14
- radicchios19
- rainchecks23
- rainstorms14
- ramosities13
- raunchiest17
- ravishment20
- reaccented18
- reactances17
- reanimates14
- recensions15
- recentness15
- receptions17
- recessions14
- rechristen16
- recipients17
- recitation14
- recognises16
- recoinages16
- recombines20
- recommence23
- recommends21
- recompense20
- reconceive21
- reconciles18
- reconnects18
- recontacts17
- reconvicts21
- recreation14
- redactions15
- reeditions12
- reelection15
- reemission14
- reemphases18
- reemphasis18
- reestimate13
- reexamines21
- refashions16
- refections17
- refinishes16
- reimagines16
- reimmerses16
- reinhabits16
- reinspects17
- reinstates11
- rejections23
- relicenses15
- relictions15
- relocatees14
- remanences18
- rematching21
- remediates14
- reminisced18
- reminiscer17
- reminisces17
- remissions14
- remitments17
- remittance17
- remoistens14
- remonetize23
- remoteness14
- renascence18
- renominate15
- renotifies14
- rescission14
- researches15
- reseasoned12
- resections14
- residences15
- resilience15
- resistance14
- resketches19
- resonances15
- restitches15
- reteaching18
- reticences17
- retrenches16
- revanchism23
- revanchist20
- rheometers15
- rheostatic15
- rheumatics19
- rheumatism19
- rhinestone14
- rhodamines17
- richnesses16
- ricocheted19
- riminesses14
- rimosities13
- rosemaries13
- rotisserie10
- rousements15
- saccharine19
- saccharins19
- sacraments17
- sacrifices19
- sacristies13
- sacrosanct17
- saliencies15
- salometers14
- sanctifier17
- sanctifies17
- sanctities14
- sanitaries11
- sanitorium15
- sapiencies17
- sarcomeres16
- scammonies20
- scarceness17
- scarcities16
- scenarists14
- scepticism22
- scheelites16
- schematics21
- schematism21
- schematize27
- schismatic21
- schmeering21
- scholastic19
- scientisms17
- scientizes23
- sclerotics17
- sclerotins15
- scolecites17
- scraiching21
- scratchers18
- scratchier18
- scratching21
- scrawniest17
- screechers18
- screechier18
- screeching21
- scrimmages21
- scrimpiest19