10 letters
- supergenes17
- superorder15
- superports17
- superraces17
- superscout18
- superseder15
- supersonic18
- superstock21
- superstore14
- supersweet17
- supertonic18
- supervenes19
- supporters17
- surrenders13
- telecourse15
- telescopes17
- terrorises10
- terrorless11
- threescore15
- treasurers11
- treponemes17
- truenesses12
- uncorseted16
- uncouplers20
- underscore16
- understeer13
- unescorted16
- unreported16
- unreserves16
- unrestored13
- unstoppers18
- westerners14