Which word on this page ranks as the most common?The most common word for your search is 'enormous'.
What is the highest scoring word in Scrabble available from this list ?With the number of words to select from, your best choice is to choose 'exuccous' scoring 19 points.
What is a strange word on this page of words that start with 'e' and include 'ous'?By far the most interesting word in this list is 'effectuous'. According to the Oxford dictionary, 'effectuous' is defined as "Effective. [Obs.] B. Jonson.".
What's the longest word you can create from words that start with 'e' and include 'ous'?The largest word is 19 characters, which is 'electroacoustically'.
In total, how many words are there using the combination requested?From this page of words starting with 'e' that contain 'ous', you have 293 fantastic combinations which are possible.