According to SOWPODS (the combination of Scrabble dictionaries
used around the world) there are 24 words with the pattern
-A--I-A-S. That is, nine letter words with 2nd letter A and 5th
letter I and 7th letter A and 9th letter S. In alphabetical order,
they are:
barbicans
barbitals
bartisans
bartizans
cannibals
capsizals
cardigans
cardinals
carnivals
gallivats
handicaps
harridans
jambiyahs
kaffiyahs
lacrimals
larrigans
mackinaws
madrigals
marginals
marzipans
partisans
partizans
wannigans
warrigals