9 letter words:
rhizobium25,
7 letter words:
bohrium14,
6 letter words:
rhombi13,
5 letter words:
zombi18,
rhomb12,
rhumb12,
humor10,
mohur10,
houri8,
oribi7,
4 letter words:
zori13,
buhr9,
brim8,
umbo8,
hour7,
biro6,
brio6,
miri6,
3 letter words:
biz14,
him8,
hob8,
hub8,
hum8,
mho8,
ohm8,
bum7,
mib7,
mob7,
rho6,
bio5,
bro5,
bur5,
mir5,
mor5,
obi5,
orb5,
rib5,
rim5,
rob5,
rom5,
rub5,
rum5,
urb5,
our3,
2 letter words:
hm7,
hi5,
ho5,
oh5,
uh5,
bi4,
bo4,
mi4,
mo4,
mu4,
om4,
um4,
oi2,
or2,