4 letters
- bhut10
- bias7
- bice10
- bide8
- bier7
- bigs9
- bike11
- bile8
- bilk12
- bill9
- bima10
- bind9
- bine8
- bins8
- bint8
- bird8
- birk11
- birl8
- birr7
- bise7
- bite7
- bits7
- bitt7
- bize16
- blab11
- blae8
- blah10
- blam11
- blat8
- blaw11
- bleb11
- bled9
- blet8
- blew11
- blin9
- blip11
- blot8
- blub12
- blue9
- blur9
- boar7
- boat7
- boil8
- bola8
- bole8
- bolt8
- bone8
- bong10
- bora7
- bore7
- born8
- bort7
- bota7
- bout8
- brad8
- brae7
- brag9
- bran8
- bras7
- brat7
- braw10
- bray9
- bred8
- bree7
- bren8
- brew10
- brie7
- brig9
- brim10
- brin8
- brio7
- bris7
- brit7
- brut8
- bugs10
- buhl11
- buhr10
- bulb12
- bulk13
- bull10
- bumf14
- bump14
- bums11
- bund10
- bung11
- bunk13
- bunn10
- buns9
- bunt9
- bura8
- burd9
- burg10
- burl9
- burn9
- burp11
- burr8
- burs8
- bury10
- bust8
- bute8
- buts8
- butt8
- byre9
- byrl10
- byte9
- cage9
- cain8
- calm11
- came10
- camp13
- cane8
- cant8
- cape10
- carb10
- care7
- carl8
- carn8
- carp10
- cart7
- cate7
- caul9
- ceil8
- celt8
- cent8
- cine8
- cire7
- cite7
- clag10
- clam11
- clan9
- clap11
- clip11
- clit8
- club12
- clue9
- crab10
- crag9
- cram10
- crap10
- crib10
- cube11
- culm12
- cult9
- cunt9
- curb11
- cure8
- curl9
- curn9
- curt8
- cute8
- dale6
- dame8
- damn9
- damp11
- dang8
- darb8
- dare5
- darn6
- dart5
- data5
- date5
- daub9
- daut6
- deal6
- dean6
- dear5
- debt8
- deil6
- deli6
- delt6
- deni6
- dent6
- derm8
- dial6
- diel6
- diet5
- dime8
- dine6
- ding8
- dint6
- dipt8
- dire5
- dirl6
- dirt5
- dita5
- dite5
- drab8
- drag7
- dram8
- drat5
- dreg7
- drib8
- drip8
- drub9
- drug8
- drum9
- dual7
- duel7
- duet6
- duit6