10 letters
- retransmit14
- retreating13
- retwisting16
- revisiting17
- ringmaster16
- roistering13
- sanitating14
- sanitising14
- sanitizing23
- satirising13
- satirizing22
- sauntering15
- scarpering19
- scattering16
- separating16
- septenarii14
- sharpening19
- shattering15
- skittering17
- smartening17
- smattering16
- spattering16
- speciating19
- spectating19
- sprattling17
- springeing19
- springiest16
- springtail17
- springtide17
- springtime19
- sputtering17
- stationing14
- stentorian12
- straighten15
- straighter14
- stringiest13
- supergiant17
- supinating18
- tangerines14
- tanistries11
- tarnishing16
- tenantries12
- tendinitis13
- tertiaries10
- tetanising14
- tetanizing23
- trailering14
- trailerist11
- transcript17
- transgenic17
- transients12
- transiting14
- transition12
- transitive15
- transpired15
- transpires14
- traversing17
- treasuring14
- trepanning18
- trephining19
- tretinoins12
- triennials13
- trinketing18
- tripartite13
- tripinnate15
- trisecting16
- tristearin11
- triunities12
- truantries12
- uninitiate13
- upstarting17
- upstirring17
- uraninites13