8 letter words:
birching16,
6 letter words:
grinch12,
hiring10,
ricing9,
5 letter words:
birch12,
bring8,
icing8,
ricin7,
iring6,
4 letter words:
chin9,
inch9,
rich9,
crib8,
nigh8,
brig7,
brin6,
girn5,
grin5,
ring5,
3 letter words:
chi8,
hic8,
ich8,
ghi7,
big6,
cig6,
gib6,
hin6,
bin5,
nib5,
rib5,
gin4,
rig4,
rin3,
2 letter words:
hi5,
bi4,
in2,