6 letter words:
kotows13,
5 letter words:
kotow12,
books11,
kobos11,
kotos9,
stook9,
boost7,
boots7,
4 letter words:
woks11,
book10,
bosk10,
kobo10,
kobs10,
bows9,
swob9,
koto8,
sook8,
took8,
stow7,
swot7,
tows7,
twos7,
woos7,
wost7,
wots7,
boos6,
boot6,
bots6,
stob6,
oots4,
soot4,
3 letter words:
wok10,
kob9,
bow8,
kos7,
tsk7,
sow6,
tow6,
two6,
woo6,
wos6,
wot6,
boo5,
bos5,
bot5,
sob5,
oot3,
sot3,
too3,
2 letter words:
ow5,
wo5,
bo4,
os2,
so2,
to2,