4 letter words:
zebu15,
zero13,
buhr9,
herb9,
hero7,
hoer7,
hour7,
bore6,
robe6,
rube6,
euro4,
roue4,
3 letter words:
hob8,
hub8,
her6,
hoe6,
hue6,
rho6,
bro5,
bur5,
obe5,
orb5,
reb5,
rob5,
rub5,
urb5,
ore3,
our3,
roe3,
rue3,
2 letter words:
eh5,
he5,
ho5,
oh5,
uh5,
be4,
bo4,
er2,
oe2,
or2,
re2,