7 letter words:
pickoff21,
4 letter words:
kiff14,
koff14,
coff12,
pick12,
pock12,
coif9,
fico9,
foci9,
3 letter words:
kif10,
ick9,
iff9,
kip9,
kop9,
off9,
fop8,
cop7,
koi7,
oik7,
pic7,
poi5,
2 letter words:
ki6,
ko6,
if5,
of5,
op4,
pi4,
po4,
io2,
oi2,