Which word in particular on this page contains the largest number of letters?The biggest word you could assemble from the specified combination is 'dsri', which consists 4 characters.
How many acceptable words could one make using the specified combination?From this page of words that include 'dsr', you have 2 entries which can be selected.
What is the highest scoring word you can play in Scrabble ?As there is just 2 combinations available, the only option you can go for is 'dsri' which scores 5 points.