4 letters
- soon5
- soph9
- sops7
- sora4
- sorb7
- sord5
- sore4
- sori4
- sorn5
- sort4
- soup8
- sour5
- sown8
- soya6
- spae7
- spam10
- span8
- spar7
- spas7
- spat7
- spay9
- spaz16
- spic10
- spik11
- spin8
- spit7
- spiv11
- spot7
- spry9
- spun9
- spur8
- sris4
- star4
- stir4
- stoa4
- stop7
- sura5
- swan8
- swap10
- swop10
- tain5
- tans5
- taos4
- tapa7
- taps7
- tarn5
- taro4
- tarp7
- tars4
- tins5
- tips7
- tiro4
- tons5
- topi7
- tops7
- tora4
- tori4
- torn5
- tors4
- trap7
- trio4
- trip7
- trop7
- tsar4
- unai6
- upas8
- upon9
- urns6
- ursa5
- vain9
- vair8
- vans9
- vara8
- vars8
- vasa8
- vina9
- vino9
- visa8
- wain8
- wair7
- wans8
- waps10
- warn8
- warp10
- wars7
- wasp10
- wino8
- wins8
- wisp10
- wons8
- wops10
- worn8
- wrap10
- yaps9
- yarn7
- yins7
- yips9
- yoni7
- zaps16
- zins14
- zips16
- zori13