10 letters
- ocularists15
- officiants20
- officiates19
- omnificent21
- omniscient18
- orangutans15
- orchitises15
- ordinances16
- organicist16
- orientates11
- originates13
- ornateness12
- ornithines14
- ossifrages15
- ostensoria11
- ostracised14
- ostracises13
- ostracisms16
- ostracizes22
- outclasses15
- outcrosses14
- outearning15
- outercoats14
- outfasting17
- outfitters14
- outraising14
- outsprints15
- outstaring14
- outstrides12
- pancreatin18
- parasitise13
- partitions14
- passionate14
- pastorates13
- patination15
- patissiers13
- patricians17
- patriciate16
- patristics16
- patronises14
- pentatonic18
- percussion18
- perfusions18
- pernicious18
- persuasion15
- poincianas18
- poinsettia14
- pontifices20
- postcrises16
- postcrisis16
- precaution18
- precisians17
- precisions17
- prefascist19
- prissiness14
- proficient20
- prosciutti17
- protistans14
- proustites14
- psittacine17
- psoriatics16
- puissances18
- punctation19
- quaintness22
- quantifier24
- quantifies24
- quantities21
- quarantine22
- quaternion22
- quinacrine25
- quittances24
- racialists14
- racinesses14
- raconteurs15
- radiancies15
- radiations12
- raffinoses17
- rainforest14
- rainspouts15
- ramosities13
- rancidness16
- rapacities16
- rationales12
- raunchiest17
- reacquaint24
- reasonings14
- recensions15
- recessions14
- recitalist14
- recitation14
- recitativo17
- reclusions16
- recontacts17
- recounting18
- recursions15
- redactions15
- rediscount16
- reductants16
- reductions16
- refashions16
- refections17
- refinances18
- reflations15
- refocusing20
- refocusses17
- refraction17
- refutation15
- reinfusing18
- reinstates11
- reinvasion16
- relictions15
- remissions14
- renditions13
- renotifies14
- renunciate16
- reputation15
- rescission14
- resections14
- resinating14
- resistance14
- resistants11
- resittings13
- resonances15
- resonating14
- restaurant12
- restraints11
- resultants13
- retentions12
- retinacula16
- retraction14
- reunionist13
- rheostatic15
- rickettsia17
- ringtosses13
- ritualists12
- robustness15
- rosinesses11
- rottenness12
- rotundness14
- routinizes21
- rugosities13
- ruinations13
- rumination16
- russetings14
- russetting14
- rusticated15
- rusticates14
- rusticator14
- sacahuiste16
- sacraments17
- sacrifices19
- sacristans14
- sacristies13
- sacrosanct17
- safranines15
- sagacities15
- saintliest12
- salacities14
- saltations12
- salutation13
- sanatorium15
- sanbenitos15
- sanctified18
- sanctifier17
- sanctifies17
- sanctioned16
- sanctities14
- sandstones13
- sanitarian12
- sanitaries11
- sanitarium15
- sanitating14
- sanitation12
- sanitorium15
- santolinas13
- saponifier17
- saponifies17
- satiations11
- saturating14
- saturation12
- saturators11
- saturniids13
- saturnisms15
- satyriases12
- satyriasis12
- sauceboats17
- sauntering15
- savoriness15
- savouriest15
- scabiouses17
- scantiness15
- scarcities16
- scarfskins21
- scarifiers16
- scattergun17
- scattering16
- scenarists14
- scientisms17
- scientists14
- scissoring16