7 letter words:
rowlock16,
5 letter words:
crook11,
color7,
4 letter words:
work11,
cook10,
cork10,
lock10,
rock10,
cowl9,
crow9,
kolo8,
look8,
rook8,
wool7,
cool6,
loco6,
3 letter words:
wok10,
cow8,
kor7,
low6,
owl6,
row6,
woo6,
col5,
coo5,
cor5,
orc5,
roc5,
loo3,
2 letter words:
ow5,
wo5,
lo2,
or2,
