6 letter words:
iffier12,
chirre11,
ferric11,
richer11,
5 letter words:
chief13,
fiche13,
fifer11,
chirr10,
firer8,
frier8,
hirer8,
rifer8,
cirri7,
crier7,
icier7,
ricer7,
4 letter words:
chef12,
fief10,
fife10,
riff10,
fice9,
rich9,
fire7,
heir7,
hire7,
reif7,
rife7,
cire6,
rice6,
3 letter words:
eff9,
feh9,
iff9,
chi8,
hic8,
ich8,
fer6,
fie6,
fir6,
her6,
hie6,
ref6,
rif6,
ice5,
rec5,
err3,
ire3,
rei3,
2 letter words:
ef5,
eh5,
fe5,
he5,
hi5,
if5,
er2,
re2,