5 letter words:
whoop13,
4 letter words:
whip12,
whop12,
whio10,
hoop9,
pooh9,
3 letter words:
how9,
who9,
hip8,
hop8,
phi8,
pho8,
poh8,
pow8,
wop8,
hoi6,
hoo6,
oho6,
ooh6,
woo6,
oop5,
poi5,
poo5,
2 letter words:
hi5,
ho5,
oh5,
ow5,
wo5,
op4,
pi4,
po4,
io2,
oi2,
oo2,