5 letter words:
birch12,
buchu12,
chiru10,
4 letter words:
chiz18,
chib11,
chub11,
buhr9,
huic9,
rich9,
crib8,
curb8,
uric6,
3 letter words:
biz14,
cuz14,
riz12,
chi8,
hic8,
hub8,
ich8,
cub7,
hui6,
bru5,
bur5,
cru5,
cur5,
rib5,
rub5,
ruc5,
urb5,
2 letter words:
ch7,
hi5,
uh5,
bi4,
ur2,