4 letters
- neif8
- nema8
- nevi9
- nice8
- nick12
- nide6
- nine6
- nipa8
- nite5
- nixe12
- once8
- pace10
- pain8
- pane8
- pean8
- pein8
- pian8
- pica10
- pice10
- pina8
- pine8
- race7
- raff10
- rain5
- rani5
- reif7
- rein5
- rice7
- rife7
- riff10
- safe7
- sain5
- sane5
- scan8
- seif7
- sice7
- sine5
- tace7
- tain5
- teff10
- tiff10
- tine5
- unai6
- unci9
- vain9
- vane9
- vein9
- vena9
- vice11
- vina9
- vine9
- waff13
- waif10
- wain8
- wane8
- wean8
- wife10
- wine8
- yaff12
- yean7
- zein14
- zinc17