Words that start with 'd' and contain 'sp'

How many letters are in the largest word from this page?
The largest word on this list is 'disproportionableness'. It is made up 21 letters.

What is an interesting word from this list?
Our favorite unusual word from this list goes to 'disparagement'. 'Disparagement''s definition is "1. Matching any one in marriage under his or her degree; injurious union with something of inferior excellence; a lowering in rank or estimation. [Eng.] And thought that match a foul disparagement. Spenser. 2. Injurious comparison with an inferior; a depreciating or dishonoring opinion or insinuation; diminution of value; dishonor;...", according to the dictionary.

What is the highest number of points you could get in Scrabble from this list of words starting with 'd' that contain 'sp'?
With so many words to select from, your best bet is 'dyspathy' which scores 20 points overall.

What's the most common word on this page?
Rating as the 2659^th most common word, you'll want to make sure you've got 'displayed' memorized.

What's the max number of words one can create from this list?
You could derive 594 words using the letter combination you asked for.