4 letters
- span8
- spar7
- spas7
- spat7
- spay9
- spaz16
- spic10
- spik11
- spin8
- spit7
- spiv11
- spud9
- spue8
- spun9
- spur8
- stag6
- stun6
- suba8
- sugh9
- suit5
- sump11
- sung8
- sunk10
- sunn7
- suns6
- supe8
- sups8
- sura5
- swag9
- swan8
- swap10
- swig9
- tags6
- tain5
- tang7
- tans5
- taps7
- taus5
- ting7
- tins5
- tips7
- tugs7
- tuis5
- tuna6
- tung8
- tuns6
- tups8
- ughs9
- ulan7
- ulna7
- umps11
- unai6
- unau7
- unci9
- unit6
- upas8
- upon9
- urns6
- ursa5
- utas5
- vagi10
- vain9
- vang11
- vans9
- vaus9
- viga10
- vigs10
- vina9
- visa8
- vugs11
- wags9
- wain8
- wans8
- waps10
- wasp10
- wigs9
- wing10
- wins8
- wisp10
- yagi8
- yang9
- yaps9
- yaup10
- yins7
- yips9
- yuan8
- yuga9
- yups10
- zags15
- zaps16
- zigs15
- zing16
- zins14
- zips16