9 letters
- resonants11
- restating12
- restraint10
- retaining13
- retasting12
- retention11
- retinites10
- retinitis10
- retinoids11
- retinting13
- retirants10
- rigatonis12
- rotations10
- ruination12
- saintlier11
- sanbenito14
- sanitoria10
- satiation10
- saturnine12
- senhorita12
- seniority12
- senoritas10
- sensation11
- sententia11
- seriating12
- serotinal11
- serotonin11
- serration10
- signorina13
- signorine13
- siltation11
- sintering13
- sirenians11
- situation11
- solitaire10
- sortieing12
- sortition10
- stannites11
- stationed11
- stationer10
- sterilant11
- straining13
- straitens10
- striating12
- striation10
- stringent13
- strontias10
- taborines13
- taconites13
- tanneries11
- tantivies14
- tarnation11
- tearstain10
- tenorists10
- tenorites10
- tensional12
- tensioner11
- tetragons12
- thionates12
- thionines13
- thorniest12
- tinstones11
- titanites10
- tithonias12
- titration10
- topiaries12
- tractions13
- tradition11
- trainings13
- transient11
- transited11
- transonic14
- tretinoin11
- triazines19
- tricotine13
- triennial12
- trinities10
- triptanes13
- troilites10
- trotlines11
- turnstone12
- tyrannies13
- tyrannise13
- uintaites11
- uraninite12
- urination12
- venations15
- vernation15
- vitiation14
- vitiators13
- wantoners14
- wintriest13