Words with 'us' at the start and 'e' at the end

What is the best score you're able to get in Scrabble from this list of words that start with 'us' and end with 'e'?
Using this particular combination, the best word you should play is 'usquabae' which scores 19 points in Scrabble.

How many characters does the biggest word on this page contain?
The longest word one could derive from this list is 'ustilaginaceae', which is made up of 14 characters.

Which word that starts with 'us' and ends with 'e' is the most common word?
The most common word is 'use', which in fact is the 293^rd most common word in this list.

How many usable words could one make from this list?
From this list of words beginning with 'us' and ending with 'e', we have discovered 26 unique combinations that are possible overall.

Is there an example of a word from this page which might be deemed as unusual?
Ranking as our favorite strange word on this list is 'ustulate'. The definition of 'ustulate' is as follows: "Blackened as if burned.". Source Oxford Dictionary.