4 letters
- plus9
- puce11
- puds9
- pula9
- pule9
- puli9
- puls9
- puna9
- puns9
- sade5
- sadi5
- said5
- sail5
- sain5
- sale5
- salp8
- sand6
- sane5
- saul6
- scad8
- scan8
- scud9
- scup11
- seal5
- seed5
- seel5
- seen5
- seep7
- send6
- sene5
- sial5
- sice7
- side5
- sild6
- sine5
- sipe7
- size13
- slap8
- sled6
- slid6
- slip8
- slue6
- snap8
- sned6
- snip8
- spae7
- span8
- spaz16
- spec10
- sped8
- spic10
- spin8
- spud9
- spue8
- spun9
- sued6
- supe8
- ulan7
- ulna7
- unai6
- unci9
- unde7
- upas8
- used6
- zaps16
- zeal14
- zeds14
- zees13
- zein14
- zinc17
- zins14
- zips16