9 letters
- restraint10
- retardant11
- retinitis10
- retirants10
- retorting12
- revertant14
- ribavirin17
- riverboat16
- rivetting16
- routinize20
- sanitoria10
- satiation10
- separator12
- serration10
- stationer10
- striation10
- tantalize20
- tantivies14
- tanzanite20
- tarnation11
- tarriance13
- tearstain10
- terrapins13
- throatier11
- tiptoeing15
- titration10
- topiaries12
- totalizer19
- tradition11
- transpire13
- transport13
- trapezist21
- trapezoid22
- trattoria9
- trattorie9
- trepidant14
- tretinoin11
- triazines19
- tricotine13
- trilinear11
- trinities10
- triptanes13
- trivalent15
- tzarevnas23
- vaporetti16
- vaporetto16
- vaporized26
- vaporizer25
- vaporizes25
- vaporware19
- variating16
- variation14
- venerator14
- veratrias13
- veratrine14
- veratrins14
- vernation15
- vibration17
- vicariant17
- vicariate16
- viewpoint20
- vitiating16
- vitiation14
- vitiators13
- vizierate22
- vizierial23
- vizirates22
- zaratites18