5 letter words:
brock13,
bucko13,
kombu13,
brook11,
combo11,
coomb11,
cromb11,
crook11,
crumb11,
bromo9,
broom9,
courb9,
mucor9,
mucro9,
rumbo9,
buroo7,
4 letter words:
cowk13,
wock13,
bock12,
buck12,
mock12,
muck12,
womb11,
work11,
boko10,
book10,
bork10,
bouk10,
burk10,
comb10,
cook10,
cork10,
kobo10,
moko10,
mook10,
murk10,
rock10,
ruck10,
bowr9,
brow9,
crow9,
worm9,
boom8,
borm8,
coom8,
corm8,
curb8,
koro8,
koru8,
ombu8,
rook8,
umbo8,
boor6,
broo6,
cour6,
moor6,
room6,
roum6,
3 letter words:
cwm10,
kow10,
wok10,
bok9,
kob9,
bow8,
cow8,
mow8,
bum7,
cob7,
cub7,
cum7,
kor7,
mob7,
moc7,
ouk7,
rok7,
row6,
woo6,
boo5,
bor5,
bro5,
bru5,
bur5,
coo5,
cor5,
cru5,
cur5,
moo5,
mor5,
mou5,
obo5,
oom5,
orb5,
orc5,
rob5,
roc5,
rom5,
rub5,
ruc5,
rum5,
urb5,
oor3,
our3,
roo3,
2 letter words:
ko6,
ow5,
wo5,
bo4,
mo4,
mu4,
ob4,
om4,
um4,
oo2,
or2,
ou2,
ur2,