4 letters
- puna9
- puny11
- quay16
- racy9
- roan5
- ruby10
- scab10
- scan8
- snob8
- snub9
- soya6
- suba8
- sybo9
- sync10
- tabu8
- taco7
- toby9
- tony7
- tuba8
- tuna6
- ulan7
- ulna7
- umbo11
- unai6
- unau7
- unbe9
- unci9
- unco9
- undo7
- undy9
- unto6
- upby13
- upon9
- wany10
- yack13
- yang9
- yank11
- yarn7
- yaud8
- yaup10
- yawn10
- yays8
- yean7
- yobs9
- yock13
- yoga8
- yond8
- yoni7
- your7
- yuan8
- yuca10
- yuch12
- yuck14
- yuga9
- zany16