How many usable words could one make using the specified combination?There are 129 words you can choose for words that start with 'r' and include 'dd'.
Is there any word on this page that jumps out as the most popular?A well-known word for the combination you requested is 'ridden'.
What is the highest possible score you could get in Scrabble from this list of words that start with 'r' and include 'dd'?With a vast 129 entries, your best choice is 'rigwiddy' which scores 17 points overall.
Is there an example of a particular word from this page which might be thought of as unique?Dictionarypedia considers 'riddler' to be the most unusual word. 'Riddler' is defined as "One who riddles (grain, sand, etc.). One who speaks in, or propounds, riddles.", according to the English dictionary.
How many characters does the biggest word from this list contain?The word 'readdressing' is made up of 12 characters.