6 letter words:
brooks12,
5 letter words:
kooks13,
bokos11,
books11,
borks11,
brook11,
kobos11,
rooks9,
boors7,
broos7,
sorbo7,
4 letter words:
kook12,
boko10,
boks10,
book10,
bork10,
bosk10,
kobo10,
kobs10,
koro8,
kors8,
roks8,
rook8,
sook8,
boor6,
boos6,
bors6,
broo6,
bros6,
obos6,
orbs6,
robs6,
sorb6,
roos4,
3 letter words:
bok9,
kob9,
kor7,
kos7,
rok7,
boo5,
bor5,
bos5,
bro5,
obo5,
obs5,
orb5,
rob5,
sob5,
oor3,
oos3,
ors3,
roo3,
2 letter words:
ko6,
bo4,
ob4,
oo2,
or2,
os2,
so2,