Which word in particular from this list has the highest letter count?The biggest word one can construct from words that start with 'ixi' and end with 'n' is 'ixionian', which contains 8 characters.
How many usable words are possible to make using the specified combination?In total, there are 2 words.
In Scrabble, what's the highest number of points you can get using this list of words with 'ixi' at the start and 'n' at the end?Given that only available, you're only possible choice is 'ixionian' scoring 15 points.