5 letters
- roper8
- ropes8
- roues6
- roups9
- rouse6
- rubes9
- ruche11
- rucks13
- ruder7
- ruers6
- ruler7
- rules7
- rumps12
- runes7
- rupee9
- ruses6
- sauce9
- scape11
- scare8
- scarp11
- scaup12
- scaur9
- scope11
- score8
- scour9
- scrap11
- scree8
- screw11
- scrip11
- scrub12
- scrum12
- sculp13
- scups12
- scurf12
- scute9
- sepic11
- serac8
- serer5
- serry7
- serum9
- setup9
- sieur6
- sirup9
- slurp10
- sorer5
- space11
- spare8
- spear8
- speck15
- specs11
- speer8
- speir8
- sperm11
- spice11
- spier8
- spire8
- spore8
- spree8
- sprue9
- sprug11
- spued10
- spues9
- spume12
- spurn10
- spurs9
- spurt9
- strep8
- stupe9
- suber9
- sucre9
- suers6
- super9
- supes9
- supra9
- surer6
- surge8
- surra6
- syrup11
- truce9
- truer6
- trues6
- turps9
- ulcer10
- upped13
- upper12
- upset9
- urare6
- urase6
- ureas6
- ureic9
- urger8
- urges8
- ursae6
- users6
- usher8
- usurp10
- xerus13