7 letter words:
unrough11,
5 letter words:
rough9,
4 letter words:
hong8,
hung8,
horn7,
hour7,
gurn5,
guru5,
rong5,
rung5,
ourn4,
3 letter words:
hog7,
hug7,
ugh7,
hon6,
hun6,
noh6,
rho6,
gnu4,
gon4,
gor4,
gun4,
gur4,
nog4,
rug4,
nor3,
nur3,
our3,
run3,
urn3,
2 letter words:
ho5,
oh5,
uh5,
go3,
gu3,
ug3,
no2,
nu2,
on2,
or2,
ou2,
un2,
ur2,