4 letter words:
boko10,
book10,
kobo10,
moko10,
mook10,
boom8,
koto8,
toko8,
tomb8,
took8,
boot6,
moot6,
tomo6,
toom6,
3 letter words:
bok9,
kob9,
mob7,
boo5,
bot5,
moo5,
mot5,
obo5,
oom5,
tom5,
oot3,
too3,
2 letter words:
ko6,
bo4,
mo4,
ob4,
om4,
oo2,
to2,