6 letter words:
niacin8,
5 letter words:
acini7,
cairn7,
naric7,
ricin7,
4 letter words:
cain6,
cann6,
carn6,
cran6,
narc6,
airn4,
inia4,
nain4,
rain4,
rani4,
3 letter words:
arc5,
can5,
car5,
ain3,
air3,
ani3,
ann3,
inn3,
nan3,
rai3,
ran3,
ria3,
rin3,
2 letter words:
ai2,
an2,
ar2,
in2,
na2,