6 letter words:
attain6,
naiant6,
natant6,
5 letter words:
annat5,
taint5,
tanna5,
tanti5,
titan5,
4 letter words:
anan4,
anna4,
anta4,
anti4,
naan4,
nain4,
nana4,
tain4,
tait4,
tana4,
tint4,
3 letter words:
aia3,
ain3,
ait3,
ana3,
ani3,
ann3,
ant3,
att3,
inn3,
ita3,
nan3,
nat3,
nit3,
tai3,
tan3,
tat3,
tin3,
tit3,
2 letter words:
aa2,
ai2,
an2,
at2,
in2,
it2,
na2,
ta2,
ti2,