How many characters are in the longest word from this page?The longest word you could assemble from this list is 'bondfolk', which is made up of 8 letters.
How many words are there using these particular combinations of letters?From this page of words that have 'df' in and end with 'lk', there are 2 effective entries which are possible altogether.
In Scrabble, what's the highest number of points possible using words containing 'df' and ending with 'lk'?Given that there 2 entries possible, the only option you can play for is 'bondfolk' scoring 18 points.