4 letters
- unit6
- unto6
- upon9
- urbs8
- urds6
- urea5
- urge7
- uric8
- urns6
- ursa5
- urus6
- used6
- user5
- uses5
- vein9
- verb11
- vibe11
- vier8
- vies8
- vims11
- vine9
- vino9
- vise8
- voes8
- webs10
- weir7
- wens8
- wine8
- wino8
- wins8
- wire7
- wise7
- wiss7
- woes7
- womb13
- wons8
- wore7
- worm10
- worn8
- wren8
- wuss8
- yens7
- yins7
- yobs9
- yoni7
- yore6
- your7
- zebu17
- zein14
- zero13
- zins14
- zone14
- zori13