Words that have 'u' as the second letter and 'n' as third letter

How many characters are in the largest word on this list?
'Bunomastodontidae'

What is a peculiar word from the combinations available on this list?
One of the most peculiar words from this page is 'sundry'. According to the Oxford dictionary, 'sundry' is defined as "1. Several; divers; more than one or two; various. "Sundry wines." Chaucer. "Sundry weighty reasons." Shak. With many a sound of sundry melody. Chaucer. Sundry foes the rural realm surround. Dryden. 2. Separate; diverse. [Obs.] Every church almost had the Bible of a sundry translation. Coleridge. All and sundry, all...".

Which word where the 2nd letter is 'u' and 3rd letter is 'n' is the most popular word?
We're able to verify that 'hundred' is the 347^th most common word.

How many usable words can you make using the combination you've searched for?
From this list of words that have 'u' as the second letter and 'n' as third letter, Dictionarypedia has discovered 1,967 unique entries which are available overall.

What's the highest scoring word you can play in Scrabble ?
With a considerable 1,967 entries, your best option is 'junkyard' scoring 23 points.