5 letter words:
puffs13,
staff11,
stuff11,
tuffs11,
tufas8,
tufts8,
putts7,
sputa7,
stupa7,
sutta5,
tauts5,
tutus5,
4 letter words:
pfft12,
puff12,
tuff10,
fast7,
fats7,
tufa7,
tuft7,
past6,
pats6,
puts6,
putt6,
spat6,
taps6,
tups6,
upas6,
stat4,
tats4,
taus4,
taut4,
tuts4,
tutu4,
utas4,
3 letter words:
aff9,
aft6,
fas6,
fat6,
apt5,
asp5,
pas5,
pat5,
pst5,
pus5,
put5,
sap5,
spa5,
sup5,
tap5,
tup5,
ups5,
att3,
sat3,
sau3,
tas3,
tat3,
tau3,
tut3,
uta3,
uts3,
2 letter words:
fa5,
pa4,
up4,
as2,
at2,
ta2,
us2,
ut2,