How many acceptable words could one make using the combination you've searched for?There are 144 words altogether.
What's the biggest word you can make from words with 'rnu' in them?There are 17 characters in the word 'supernumerariness', which makes it the biggest word on our page.
Which is the most interesting word from this page?The most interesting word from this list is 'hyosternum'. The definition of 'hyosternum' is as follows: "See Hyoplastron.".
What's the most common word with 'rnu' in them?A popular word for your search is 'tournure'.
What's the highest scoring word in Scrabble using the above combination ?As there are a myriad of words to pick from, we'd suggest selecting 'externum' scoring 17 points.