7 letter words:
chigger14,
5 letter words:
gighe10,
4 letter words:
rich9,
heir7,
hire7,
cire6,
grig6,
rice6,
3 letter words:
chi8,
hic8,
ich8,
ghi7,
cig6,
her6,
hie6,
egg5,
gig5,
ice5,
igg5,
rec5,
erg4,
gie4,
reg4,
rig4,
ire3,
rei3,
2 letter words:
eh5,
he5,
hi5,
er2,
re2,