Is there any word on this page that jumps out as the most common?A common word for the combination you requested is 'divinity'.
What is the highest scoring word you can play in Scrabble ?Considering the huge variety of words to choose from, we'd recommend going for 'divinity' scoring 15 points.
What is the longest word you can create from this list?'Diversifiability'
How many usable words could one put together using the specified combination?It's possible to create 110 words with this combination.
Which is the most unique word that starts with 'div' and includes 't'?Dictionarypedia feels 'divinization' to be the most weird word you can assemble. According to the dictionary, 'divinization' means "A making divine. M. Arnold.".