Words that start with 'cup' and contain 'o'

Is there a word on this page that sticks out as the most popular?
When it comes to popular words, there's 'cupboard', which ranks as the 12885^th most common word.

What is the longest word you can assemble with this list?
The word 'cuprodescloizite' contains 16 characters.

What is the most unique word from this page?
You'll discover several interesting words on this page, with that said our favorite word at the moment is 'cuproid'. The dictionary defines it as "(Crystalloq.) A solid related to a tetrahedron, and contained under twelve equal triangles.".

How many words are there using the combination requested?
In total, you could make 38 words.

In Scrabble, what's the highest number of points you can get using this list of words starting with 'cup' that contain 'o'?
From this combination, it is possible to make 'cupboard' scoring 15 in Scrabble.