4 letters
- span8
- spay9
- spin8
- spun9
- stay6
- stun6
- suba8
- suit5
- sung8
- sunk10
- sunn7
- suns6
- suqs14
- sura5
- swan8
- sway9
- syli7
- sync10
- syne7
- tain5
- tans5
- taus5
- tins5
- tiny7
- tuis5
- tuna6
- tuns6
- tyin7
- ulan7
- ulna7
- unai6
- unau7
- unci9
- undy9
- unit6
- upas8
- urns6
- ursa5
- utas5
- vain9
- vans9
- vaus9
- vina9
- viny11
- visa8
- wain8
- wans8
- wany10
- ways9
- wins8
- winy10
- wyns10
- yagi8
- yaks10
- yams9
- yang9
- yank11
- yaps9
- yarn7
- yaud8
- yaup10
- yawn10
- yaws9
- yays8
- yean7
- yeas6
- yens7
- yids7
- yins7
- yips9
- yoni7
- yuan8
- yuca10
- yuga9
- yuks11
- yups10
- ywis9
- zany16
- zins14