7 letter words:
puffins15,
6 letter words:
puffin14,
5 letter words:
puffs13,
spiff13,
sniff11,
snuff11,
4 letter words:
puff12,
pfui9,
fins7,
funs7,
nips6,
pins6,
puns6,
snip6,
spin6,
spun6,
3 letter words:
iff9,
fin6,
fun6,
ifs6,
nip5,
pin5,
pis5,
piu5,
psi5,
pun5,
pus5,
sip5,
sup5,
ups5,
ins3,
nus3,
sin3,
sun3,
uns3,
2 letter words:
if5,
pi4,
up4,
in2,
is2,
nu2,
si2,
un2,
us2,