5 letter words:
bortz16,
trooz14,
brook11,
robot7,
turbo7,
4 letter words:
zouk17,
bozo15,
orzo13,
ouzo13,
book10,
bork10,
kobo10,
koto8,
rook8,
took8,
turk8,
boor6,
boot6,
bort6,
bout6,
broo6,
brut6,
root4,
roto4,
rout4,
toro4,
tour4,
3 letter words:
zoo12,
kob9,
kor7,
boo5,
bot5,
bro5,
bur5,
but5,
orb5,
rob5,
rub5,
tub5,
urb5,
oot3,
ort3,
our3,
out3,
rot3,
rut3,
too3,
tor3,
2 letter words:
bo4,
or2,
to2,
ut2,