8 letter words:
rackwork21,
5 letter words:
wacko14,
wrack14,
croak11,
arrow8,
4 letter words:
wack13,
wark11,
work11,
cark10,
cork10,
rack10,
rock10,
craw9,
crow9,
kora8,
okra8,
arco6,
carr6,
orca6,
orra4,
roar4,
3 letter words:
wok10,
caw8,
cow8,
ark7,
koa7,
kor7,
oak7,
oka7,
raw6,
row6,
war6,
arc5,
car5,
cor5,
oca5,
orc5,
roc5,
oar3,
ora3,
2 letter words:
ka6,
aw5,
ow5,
wo5,
ar2,
or2,
