Words with 'ur' at the start and 'n' at the end

What's the highest score you're able to get in Scrabble from this list of words with 'ur' at the start and 'n' at the end?
For a total of 15 points, you could use 'urazin'.

How many words are there using the combination specified?
There are up to 52 words covering all variations.

What's an unusual word from all the combinations possible ?
Our favorite unusual word from this list goes to 'urchin'. According to the English dictionary, 'urchin' is defined as "1. (Zoöl.) A hedgehog. 2. (Zoöl.) A sea urchin. See Sea urchin. 3. A mischievous elf supposed sometimes to take the form a hedgehog. "We 'll dress [them] like urchins, ouphes, and fairies." Shak. 4. A pert or roguish child; -- now commonly used only of a boy....".

What's the most common word for this page?
The most popular word in the dictionary is 'urn', which in fact is the 24235^th most common word in this list.

How many characters are in the largest word on this list?
The word 'urofuscohematin' contains 15 characters.