Which word in particular from this list has the highest letter count?Try 'malefeazance', which contains 12 letters.
What is an example of a unique word from this page?Dictionarypedia considers 'brazenface' to be the most unusual word on this page. It means "An impudent of shameless person. "Well said, brazenface; hold it out." Shak.".
How many viable words could one make from words that have 'az' in and end with 'ce'?You could assemble 2 words with the letter combination you asked for.