5 letter words:
colon7,
4 letter words:
bloc8,
bolo6,
bool6,
boon6,
clon6,
cool6,
coon6,
lobo6,
loco6,
obol6,
loon4,
nolo4,
3 letter words:
cob7,
bon5,
boo5,
col5,
con5,
coo5,
lob5,
nob5,
obo5,
loo3,
noo3,
ono3,
oon3,
2 letter words:
bo4,
ob4,
lo2,
no2,
on2,
oo2,