9 letter words:
yuppifies19,
7 letter words:
yippies14,
yuppies14,
6 letter words:
yippie13,
yuppie13,
5 letter words:
yipes10,
pipes9,
4 letter words:
pipy11,
espy9,
pfui9,
pyes9,
yeps9,
yipe9,
yips9,
yups9,
peps8,
pipe8,
pips8,
pups8,
feus7,
fuse7,
seif7,
pies6,
sipe6,
spue6,
supe6,
3 letter words:
fey9,
pye8,
spy8,
yep8,
yip8,
yup8,
pep7,
pip7,
pup7,
efs6,
fes6,
feu6,
fie6,
ifs6,
yes6,
pes5,
pie5,
pis5,
piu5,
psi5,
pus5,
sip5,
sup5,
ups5,
sei3,
sue3,
use3,
2 letter words:
ef5,
fe5,
if5,
ye5,
pe4,
pi4,
up4,
es2,
is2,
si2,
us2,