9 letters
- prenotion14
- pretorian13
- principia19
- privation17
- proactive19
- probation16
- procaines16
- procreant16
- profaning19
- profanity18
- profiting18
- prolactin17
- prominent17
- pronating16
- pronation14
- pronounce18
- proponent17
- proration13
- proscenia16
- prostatic15
- protamine16
- protector15
- prothetic17
- protistan13
- protonate13
- protonema16
- psoriatic15
- rainproof16
- rationing13
- ratooning13
- rattening13
- rattooned11
- reactions13
- reanoints11
- reappoint16
- recanting16
- reception16
- recipient16
- recoining16
- recontact16
- redaction14
- refection16
- refinance17
- refitting15
- reflation14
- reliction14
- rendition12
- repentant14
- repotting15
- reptilian14
- retaining13
- retention11
- retinitis10
- retinting13
- rotations10
- ruination12
- runcinate15
- serotonin11
- sincipita16
- soporific18
- sopranino14
- sortition10
- spectator15
- stationer10
- stonecrop16
- striation10
- tackifier19
- taconites13
- tarnation11
- tiptoeing15
- titration10
- topiaries12
- tractions13
- tradition11
- transfect16
- transient11
- transonic14
- trenchant16
- trepidant14
- tretinoin11
- triatomic15
- trichinae15
- triclinia14
- tricotine13
- triennial12
- trifectas15
- trinities10
- triptanes13
- triticale13
- tropistic15
- troponins14
- uncertain15
- uraninite12
- urination12
- vaporetti16
- vaporetto16
- ventifact20
- vernation15
- vitiation14