5 letter words:
kombu13,
gombo10,
gumbo10,
bloom9,
gloom8,
mogul8,
4 letter words:
book10,
bulk10,
kobo10,
gook9,
boom8,
kolo8,
look8,
umbo8,
blog7,
glob7,
glom7,
glum7,
gobo7,
boll6,
bolo6,
bull6,
lobo6,
loom6,
moll6,
mool6,
mull6,
obol6,
gull5,
logo5,
3 letter words:
kob9,
bum7,
mob7,
bog6,
bug6,
gob6,
gum6,
mog6,
mug6,
boo5,
lob5,
lum5,
mol5,
moo5,
goo4,
gul4,
log4,
lug4,
loo3,
2 letter words:
bo4,
mo4,
mu4,
om4,
um4,
go3,
lo2,