Words that start with 'cam' and contain 'a'

In total, how many words is it possible to make using the combination of letters specified?
From this page of words starting with 'cam' that contain 'a', there are 217 unique entries that can be selected.

How many characters are in the largest word from this list?
The largest word is 16 letters long, which is 'campanologically'.

What word that starts with 'cam' and includes 'a' is the most unique?
We feel 'camaieu' to be the most interesting word on this page. According to the dictionary, 'camaieu' is defined as "1. A cameo. [Obs.] Crabb. 2. (Fine Arts) Painting in shades of one color; monochrome. Mollett.".

What is the most common word that starts with 'cam' and includes 'a' in the dictionary?
The most popular word in this list according to our database is 'campaign', which is in fact the 3941^st most common word in the dictionary.

In Scrabble, what is the most points possible using this list of words that start with 'cam' and include 'a'?
As there are a vast 217 entries, your best option is 'camshach' which scores 20 points.