5 letters
- arcus9
- burns10
- carns9
- churn12
- conus10
- corns9
- cornu10
- cruds10
- cruse9
- crush11
- crust9
- cunts10
- curbs12
- curds10
- cures9
- curfs12
- curls10
- curns10
- currs9
- curse9
- curst9
- durns8
- ecrus9
- incur10
- incus10
- knurs11
- narcs9
- nurds8
- nurls8
- nurse7
- rucks13
- ruins7
- runes7
- rungs9
- runic10
- runts7
- scaur9
- scorn9
- scour9
- scrub12
- scrum12
- scurf12
- snuck14
- spurn10
- sucre9
- turns7
- uncos10
- uncus11
4 letters
- anus6
- arcs7
- buns9
- burn9
- burs8
- cans8
- carn8
- cars7
- cons8
- corn8
- cors7
- cris7
- crud9
- crus8
- crux15
- cubs11
- cuds9
- cues8
- cunt9
- cups11
- curb11
- curd9
- cure8
- curf11
- curl9
- curn9
- curr8
- curs8
- curt8
- cusk12
- cusp11
- cuss8
- cuts8
- duns7
- durn7
- ecru8
- ecus8
- erns5
- funs9
- furs8
- gnus8
- guns8
- huns8
- knur10
- muns9
- narc8
- nous6
- nubs9
- nuns7
- nurd7
- nurl7
- nuts6
- onus6
- orcs7
- ours5
- puns9
- purs8
- recs7
- rhus7
- rins5
- rocs7
- rubs8
- ruck12
- rues5
- rugs7
- ruin6
- rums8
- rune6
- rung8
- runs6
- runt6
- ruse5
- rush7
- rusk9
- rust5
- ruts5
- scan8
- scar7
- scry9
- scud9
- scum11
- scup11
- scut8
- shun8
- slur6
- snub9
- snug8
- sorn5
- sour5
- spun9
- spur8
- stun6
- such10
- suck12
- suer5
- sung8
- sunk10
- sunn7
- suns6
- sura5
- surd6
- sure5
- surf8
- sync10
- tuns6
- turn6
- unci9
- unco9
- urbs8
- urds6
- uric8
- urns6
- ursa5
- urus6
- user5
3 letters
- arc6
- ars3
- bun8
- bur7
- bus7
- can7
- car6
- cis6
- con7
- cor6
- cos6
- cry8
- cub10
- cud8
- cue7
- cum10
- cup10
- cur7
- cut7
- dun6
- ecu7
- ens4
- ern4
- ers3
- fun8
- fur7
- gnu7
- gun7
- hun7
- ins4
- jun14
- jus13
- mun8
- mus7
- nor4
- nos4
- nub8
- nun6
- nus5
- nut5
- ons4
- orc6
- ors3
- our4
- pun8
- pur7
- pus7
- ran4
- ras3
- rec6
- res3
- rin4
- roc6
- rub7
- rue4
- rug6
- rum7
- run5
- rut4
- sac6
- sau4
- sec6
- sen4
- ser3
- sic6
- sin4
- sir3
- son4
- sou4
- sri3
- sub7
- sue4
- sum7
- sun5
- sup7
- suq13
- syn6
- tun5
- uns5
- ups7
- urb7
- urd5
- urn5
- use4
- uts4