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

What's the total number of words you can put together using this combination of letters?
It is possible to make 303 words using this list.

What's the most popular word that starts with 'ar' and includes 'p'?
A popular word for the combination you requested is 'archbishop'.

In Scrabble, what is the highest number of points possible using this list of words that start with 'ar' and contain 'p'?
As there are a massive 303 entries, you should try 'archspy' which scores 17 points.

What is the most unique word that starts with 'ar' and includes 'p'?
The most interesting word based on public feedback is 'armipotence'. It is defined as "Power in arms. [R.] Johnson.".

How many letters are in the largest word from this list?
The longest word assembled by Dictionarypedia is 'archaeopterygiformes'.