5 letter words:
whoop13,
4 letter words:
whop12,
hoop9,
pooh9,
prow9,
poor6,
proo6,
roop6,
3 letter words:
how9,
who9,
hop8,
pho8,
poh8,
pow8,
wop8,
hoo6,
oho6,
ooh6,
rho6,
row6,
woo6,
oop5,
poo5,
pro5,
oor3,
roo3,
2 letter words:
ho5,
oh5,
ow5,
wo5,
op4,
po4,
oo2,
or2,