9 letters
- superbest16
- superette13
- superfine17
- supergene16
- superhits15
- superjets22
- superlies14
- supersede14
- supersets13
- supersize22
- superthin16
- supervene18
- supervise17
- supinates14
- supremest16
- surprints14
- suspender15
- suspenser14
- sustainer11
- sweepiest15
- sweetener13
- teensiest10
- teentsier10
- tendresse11
- tepidness14
- terebenes13
- teredines11
- terseness10
- tessiture10
- tiredness11
- torqueses19
- trephines15
- tricepses15
- triteness10
- turneries11
- turnpikes18
- turnspits14
- undersets12
- uneasiest11
- universes15
- unpressed15
- unquieter21
- unspheres16
- unsterile12
- upsetters13
- weensiest13
- winepress16
- yestreens12