4 letters
- riff10
- nine6
- nips8
- pehs9
- pein8
- pens8
- peri7
- phis9
- pier7
- pies7
- pine8
- pins8
- pirn8
- pish9
- reps7
- ripe7
- rips7
- ship9
- sipe7
- snip8
- spin8
- nest5
- nets5
- nite5
- nits5
- reft7
- rent5
- rest4
- rets4
- rift7
- rite4
- sent5
- shit6
- sift7
- site4
- sith6
- snit5
- stir4
- tens5
- tern5
- then7
- thin7
- thir6
- this6
- tier4
- ties4
- tine5
- tins5
- tire4
- tref7
- nixe12
f -
n -
p -
t -
x -