6 letter words:
griffe13,
iffier12,
5 letter words:
frize17,
grize15,
griff12,
fifer11,
grief9,
firie8,
4 letter words:
ziff19,
friz16,
fief10,
fife10,
fifi10,
riff10,
frig8,
fier7,
fire7,
reif7,
rife7,
3 letter words:
fez15,
fiz15,
zig13,
rez12,
riz12,
eff9,
iff9,
feg7,
fig7,
gif7,
erf6,
fer6,
fie6,
fir6,
ref6,
rif6,
erg4,
gie4,
reg4,
rig4,
ire3,
rei3,
2 letter words:
ef5,
fe5,
if5,
gi3,
er2,
re2,