4 letters
- umbo11
- umps11
- unbe9
- upas8
- urbs8
- urds6
- urea5
- urge7
- urns6
- ursa5
- urus6
- used6
- user5
- uses5
- utas5
- uvea9
- vars8
- vase8
- vast8
- vats8
- vatu9
- vaus9
- vera8
- verb11
- vert8
- vest8
- vets8
- wabs10
- waes7
- wake11
- wame10
- ware7
- wark11
- warm10
- wars7
- wart7
- wast7
- wats7
- wauk12
- waur8
- weak11
- wear7
- webs10
- weka11
- wert7
- west7
- wets7
- yaks10
- yams9
- yare6
- year6
- yeas6
- yerk10
- yeuk11
- yuks11
- yurt7
- zebu17
- zeks17
- zerk17
- zest13
- zeta13