4 letters
- husk11
- huts7
- ibex14
- ibis7
- ices7
- ichs9
- ides5
- ired5
- ires4
- iris4
- irks8
- isba7
- isle5
- jehu16
- jibe16
- jibs16
- jube17
- keir8
- kerb11
- khis10
- kibe11
- kier8
- kirs8
- kris8
- kues9
- lehr7
- leis5
- libs8
- lier5
- lies5
- lieu6
- lire5
- lube9
- lues6
- lure6
- lush8
- mesh9
- mibs10
- mire7
- mirs7
- mise7
- mure8
- murr8
- muse8
- mush10
- nebs8
- nibs8
- nubs9
- obes7
- obis7
- orbs7
- ores4
- ours5
- pehs9
- peri7
- phis9
- pier7
- pies7
- pish9
- pubs11
- pure8
- puri8
- purr8
- purs8
- push10
- rare4
- rase4
- rash6
- rear4
- rebs7
- recs7
- reds5
- rees4
- refs7
- regs6
- reif7
- rein5
- reis4
- rems7
- reps7
- resh6
- rest4
- rets4
- revs8
- rhea6
- rhos6
- rhus7
- rias4
- ribs7
- rice7
- rich9
- ride5
- rids5
- riel5
- rife7
- rifs7
- rigs6
- rile5
- rime7
- rims7
- rins5
- ripe7
- rips7
- rise4
- risk8
- rite4
- rive8
- robe7
- robs7
- roes4
- rose4
- roue5
- rube8
- rubs8
- ruby10
- rude6
- rued6
- ruer5
- rues5
- rugs7
- ruin6
- rule6
- rums8
- rune6
- runs6
- ruse5
- rush7
- rusk9
- rust5
- ruth7
- ruts5
- ryes6
- sabe7
- sari4
- sear4
- seer4
- seif7
- seis4
- semi7
- sera4
- sere4
- serf7
- sers4
- shea6
- shed7
- shes6
- shew9
- shim9
- shin7
- ship9
- shit6
- shiv10
- shoe6
- shri6
- shul8
- shun8
- shut7
- sibb10
- sibs7
- sice7
- side5
- sigh8
- sike8
- sine5
- sinh7
- sipe7
- sire4
- sirs4
- site4
- sith6
- size13
- slub9
- slue6
- slur6
- snib8
- snub9
- sorb7
- sore4
- sori4
- sour5
- spue8
- spur8
- sris4
- stir4
- stub8
- suba8
- subs8
- such10
- sued6
- suer5
- sues5
- suet5
- sugh9
- suit5
- supe8
- sura5
- surd6
- sure5
- surf8
- thir6