Words that contain 'a' and end in 'is'

In Scrabble, what's the highest score you can get using this list of words that have 'a' in and end with 'is'?
Given there are heaps of words to decide on, it's best to opt for 'hajjis' which scores 23 points.

How many words is it possible to make using these particular combinations of letters?
From this list of words that have 'a' in and end with 'is', Dictionarypedia has discovered 2,582 brilliant combinations which can be selected.

How many characters are in the longest word on this list?
Try 'gastroenteroanastomosis'

Which word that has 'a' in and ends with 'is' is the most interesting?
The most strange word in our opinion is 'megalopolis'. The definition of 'megalopolis' is as follows: "A chief city; a metropolis. [R.]". Source Oxford Dictionary.

Which word that has 'a' in and ends with 'is' is the most common word in the dictionary?
The most common word in this list is 'basis', which is in fact the 4108^th most popular word in the dictionary.