6 letter words:
finnac11,
niacin8,
5 letter words:
ficin10,
finca10,
acini7,
4 letter words:
fain7,
fini7,
naif7,
cain6,
cann6,
inia4,
nain4,
3 letter words:
fan6,
fin6,
can5,
ain3,
ani3,
ann3,
inn3,
nan3,
2 letter words:
fa5,
if5,
ai2,
an2,
in2,
na2,