Words that start with 'cou' and contain 'p'

In Scrabble, what is the highest possible score you can get using words that start with 'cou' and contain 'p'?
As there are an extensive 171 entries, you may want to pick 'courtepy' scoring 15 points.

Which word that starts with 'cou' and includes 'p' is the most unusual?
The most stand out word from this list is certainly 'couplet'. The typical definition of 'couplet' is as follows: "Two taken together; a pair or couple; especially two lines of verse that rhyme with each other. A sudden couplet rushes on your mind. Crabbe.".

Which word on this page stands out as the most common?
As far as popular words go, there's 'couple', which is the 2178^th most common word.

What's the max number of words you can make from this combination of letters?
On this page of words that start with 'cou' and include 'p', Dictionarypedia has discovered 171 effective entries which can be selected.

Which word in particular from this list has the highest letter count?
The biggest word on this page is 'counterinterpretation', and consists of 21 letters