6 letter words:
bookoo12,
boohoo11,
hooroo9,
5 letter words:
brook11,
4 letter words:
howk14,
hook11,
khor11,
work11,
boko10,
book10,
bork10,
kobo10,
boho9,
booh9,
bowr9,
brow9,
hobo9,
koro8,
rook8,
boor6,
broo6,
3 letter words:
kow10,
wok10,
bok9,
how9,
kob9,
who9,
boh8,
bow8,
hob8,
kor7,
rok7,
hoo6,
oho6,
ooh6,
rho6,
row6,
woo6,
boo5,
bor5,
bro5,
obo5,
orb5,
rob5,
oor3,
roo3,
2 letter words:
ko6,
ho5,
oh5,
ow5,
wo5,
bo4,
ob4,
oo2,
or2,