6 letter words:
farcin11,
5 letter words:
farci10,
finca10,
franc10,
infra8,
cairn7,
naric7,
4 letter words:
fain7,
fair7,
fiar7,
firn7,
naif7,
cain6,
carn6,
cran6,
narc6,
airn4,
rain4,
rani4,
3 letter words:
arf6,
fan6,
far6,
fin6,
fir6,
fra6,
rif6,
arc5,
can5,
car5,
ain3,
air3,
ani3,
rai3,
ran3,
ria3,
rin3,
2 letter words:
fa5,
if5,
ai2,
an2,
ar2,
in2,
na2,