4 letters
- kern9
- khaf13
- khan11
- khis10
- kids9
- kief11
- kier8
- kifs11
- kina9
- kind10
- kine9
- kins9
- kirn9
- kirs8
- knar9
- knee9
- kris8
- naif8
- narc8
- nard6
- nark9
- near5
- neck12
- need6
- neif8
- nerd6
- nice8
- nick12
- nide6
- race7
- rack11
- rads5
- raid5
- rain5
- rake8
- raki8
- rand6
- rani5
- rank9
- rase4
- rash6
- read5
- reck11
- recs7
- rede5
- reds5
- reed5
- reef7
- reek8
- rees4
- refs7
- reif7
- rein5
- reis4
- rend6
- resh6
- rhea6
- rias4
- rice7
- rich9
- rick11
- ride5
- rids5
- rife7
- rifs7
- rind6
- rink9
- rins5
- rise4
- risk8
- sack11
- sade5
- sadi5
- safe7
- said5
- sain5
- sake8
- saki8
- sand6
- sane5
- sank9
- sard5
- sari4
- sark8
- scad8
- scan8
- scar7
- sear4
- seed5
- seek8
- seen5
- seer4
- seif7
- send6
- sene5
- sera4
- sere4
- serf7
- shad7
- shah8
- shea6
- shed7
- shin7
- shri6
- sice7
- sick11
- side5
- sike8
- sine5
- sinh7
- sink9
- sire4
- skee8
- skid9
- skin9
- sned6