4 letters
- nick12
- nigh9
- nipa8
- nubs9
- nuke10
- numb12
- obia7
- oink9
- paik11
- pain8
- pang10
- pian8
- pika11
- pina8
- ping10
- pink12
- puna9
- pung11
- punk13
- quag16
- quai14
- quin15
- ragi6
- rain5
- raki8
- rang7
- rani5
- rank9
- ring7
- rink9
- ruga7
- ruin6
- rung8
- sain5
- saki8
- sang7
- sank9
- sign7
- sing7
- sink9
- skag10
- skin9
- skua9
- snag7
- snib8
- snub9
- snug8
- suba8
- sung8
- sunk10
- tabu8
- tain5
- tang7
- tank9
- ting7
- tuba8
- tuna6
- tung8
- ulan7
- ulna7
- unai6
- unau7
- unbe9
- unci9
- unit6
- vagi10
- vain9
- vang11
- viga10
- vina9
- wain8
- wauk12
- wing10
- wink12
- yagi8
- yang9
- yank11
- yuan8
- yuga9
- zing16