Words that include 'cos'

What is the total number of words one can construct using words with 'cos' in them?
There are up to a maximum of 997 entries addressing your query.

Which word on this page is the most common?
There's 'cost' which ranks as the 969^th most popular word.

What is the highest number of points you can get in Scrabble using this list of words with 'cos' in them?
With a vast 997 entries, you should opt for 'zydecos' which scores 22 points.

What's the longest word you can construct with the combination specified?
The word 'hydroxydehydrocorticosterone' contains 28 characters.

What is the most interesting word from this page?
Undeniably one of the most strange words from this list of words with 'cos' in them is 'cosovereign'. 'Cosovereign''s definition is "A joint sovereign.", according to the dictionary.