4 letters
- pits7
- pubs11
- puri8
- purs8
- push10
- puts8
- quit14
- rash6
- rath6
- rats4
- rebs7
- reis4
- resh6
- rest4
- rets4
- rhos6
- rhus7
- rias4
- ribs7
- rich9
- rids5
- rifs7
- rift7
- rigs6
- rims7
- rins5
- riot4
- rips7
- rise4
- risk8
- rite4
- ritz13
- robs7
- roti4
- rots4
- rout5
- rube8
- rubs8
- ruby10
- rues5
- rugs7
- ruin6
- rums8
- runs6
- runt6
- ruse5
- rush7
- rusk9
- rust5
- ruth7
- ruts5
- sari4
- sati4
- scut8
- shat6
- shim9
- shin7
- ship9
- shit6
- shiv10
- shot6
- shri6
- shul8
- shun8
- shut7
- sibb10
- sibs7
- sift7
- sigh8
- silt5
- sinh7
- sire4
- sirs4
- site4
- sith6
- sits4
- skit8
- slit5
- slub9
- slur6
- slut6
- smit7
- smut8
- snib8
- snit5
- snub9
- sorb7
- sori4
- sort4
- soth6
- sour5
- spit7
- spur8
- sris4
- stab7
- star4
- stir4
- stob7
- stub8
- stud6
- stum8
- stun6
- suba8
- subs8
- such10
- suer5
- suet5
- sugh9
- suit5
- sura5
- surd6
- sure5
- surf8
- tabs7
- tabu8
- tahr6
- tars4
- taus5
- thin7
- thio6
- thir6
- this6
- thou7
- thro6
- thru7
- thud8
- thug9
- thus7
- tics7
- tier4
- ties4
- tils5
- tins5
- tips7
- tire4
- tirl5
- tiro4
- tits4
- tori4
- tors4
- tosh6
- tour5
- trig6
- trim7
- trio4
- trip7
- true5
- trug7
- tsar4
- tuba8
- tube8
- tubs8
- tugs7
- tuis5
- tuns6
- tups8
- turd6
- turf8
- turk9
- turn6
- tush7
- tusk9
- tuts5
- ughs9
- unit6
- urbs8
- urds6
- uric8
- urns6
- ursa5
- urus6
- user5
- utas5
- whir9
- whit9
- wish9
- wist7
- with9
- wits7
- writ7
- yurt7
- zits13