7 letter words:
cooktop15,
6 letter words:
octopi10,
5 letter words:
coopt9,
optic9,
picot9,
topic9,
topoi7,
4 letter words:
pick12,
pock12,
cook10,
tick10,
coop8,
koto8,
poco8,
took8,
coot6,
otic6,
topi6,
topo6,
3 letter words:
ick9,
kip9,
kop9,
cop7,
kit7,
koi7,
pic7,
coo5,
cot5,
opt5,
pit5,
poi5,
poo5,
pot5,
tic5,
tip5,
top5,
oot3,
too3,
2 letter words:
ki6,
op4,
pi4,
it2,
oi2,
ti2,
to2,