10 letters
- sanctioned16
- sanitarian12
- sanitaries11
- sectarians14
- seminarian15
- senatorian12
- stannaries12
- strandline14
- strychnine19
- tarnishing16
- tarriances14
- technician20
- thiaminase16
- threadfins17
- tracheitis15
- tragedians14
- trailheads14
- trainbands16
- transacted15
- transcends16
- transgenic17
- transience15
- transiency17
- triarchies15
- trichiases15
- triennials13
- tyrannised15
- unhandiest16
- unitarians13
- unstrained14
- uraninites13
- vicariants18
- vicariates17
- vindicates19