8 letter words:
stackups16,
7 letter words:
stackup15,
catsups11,
upcasts11,
6 letter words:
stacks12,
catsup10,
scaups10,
upcast10,
stupas8,
5 letter words:
packs13,
pucka13,
pucks13,
casks11,
cusks11,
kaput11,
sacks11,
stack11,
stuck11,
sucks11,
tacks11,
tucks11,
caput9,
cusps9,
pacts9,
scaup9,
scups9,
skats9,
skuas9,
tasks9,
tusks9,
ascus7,
casts7,
casus7,
pasts7,
scats7,
scuta7,
scuts7,
spats7,
sputa7,
stupa7,
4 letter words:
pack12,
puck12,
cask10,
cusk10,
sack10,
suck10,
tack10,
tuck10,
asks8,
auks8,
caps8,
cups8,
cusp8,
kats8,
pacs8,
pact8,
scup8,
skas8,
skat8,
skua8,
suks8,
task8,
tsks8,
tusk8,
acts6,
asps6,
cast6,
cats6,
cuss6,
cuts6,
pass6,
past6,
pats6,
psst6,
puss6,
puts6,
sacs6,
saps6,
scat6,
scut6,
spas6,
spat6,
sups6,
taps6,
tups6,
upas6,
tass4,
taus4,
utas4,
3 letter words:
ask7,
auk7,
cap7,
cup7,
kas7,
kat7,
pac7,
ska7,
suk7,
tsk7,
act5,
apt5,
asp5,
cat5,
cut5,
pas5,
pat5,
pst5,
pus5,
put5,
sac5,
sap5,
spa5,
sup5,
tap5,
tup5,
ups5,
ass3,
sat3,
sau3,
tas3,
tau3,
uta3,
uts3,
2 letter words:
ka6,
pa4,
up4,
as2,
at2,
ta2,
us2,
ut2,