5 letter words:
frock14,
curio7,
4 letter words:
fuck13,
fork11,
kufi11,
cork10,
rick10,
rock10,
ruck10,
coif9,
corf9,
cuif9,
curf9,
fico9,
foci9,
fuci9,
four7,
coir6,
uric6,
3 letter words:
kif10,
ick9,
irk7,
kir7,
koi7,
kor7,
fir6,
for6,
fou6,
fro6,
fur6,
rif6,
cor5,
cru5,
cur5,
orc5,
roc5,
our3,
2 letter words:
ki6,
if5,
of5,
oi2,
or2,