6 letter words:
inarch11,
5 letter words:
finch13,
chain10,
chair10,
china10,
farci10,
finca10,
franc10,
ranch10,
infra8,
cairn7,
naric7,
4 letter words:
arch9,
chai9,
char9,
chia9,
chin9,
inch9,
rich9,
fain7,
fair7,
fiar7,
firn7,
hair7,
naif7,
cain6,
carn6,
narc6,
airn4,
rain4,
rani4,
3 letter words:
hah9,
chi8,
hic8,
ich8,
ahi6,
arf6,
fan6,
far6,
fin6,
fir6,
hin6,
nah6,
rah6,
rif6,
arc5,
can5,
car5,
ain3,
air3,
ani3,
rai3,
ran3,
ria3,
rin3,
2 letter words:
ah5,
fa5,
ha5,
hi5,
if5,
ai2,
an2,
ar2,
in2,
na2,