9 letters
- sightseen14
- sightsees13
- snappiest16
- snapshots15
- sneakiest14
- soapiness13
- spareness13
- sparteine13
- speciates15
- spheriest14
- spinaches18
- spineless14
- spinsters13
- staginess12
- staidness11
- stainless11
- staleness11
- stanhopes15
- stapelias13
- starships14
- steamship17
- steapsins13
- stearines10
- steepness13
- stonishes12
- supinates14
- syntheses14
- synthesis14
- taeniases10
- taeniasis10
- tankships19
- tapelines14
- tapenades14
- tarnishes12
- tastiness10
- tepidness14
- testiness10
- tetanises10
- thaneship17
- thebaines15
- therapies14
- thespians15
- tipsiness13
- tranships15
- transship15
- trephines15
- uneasiest11
- vanaspati17
- whatsises14
- whiteness15
- witnesses13