Words that contain 'pl' and end in 'in'

In total, how many words are available using this combination of letters?
There are 53 words for you to pick.

What is the highest number of points you can get in Scrabble from this list of words that contain 'pl' and end in 'in'?
One could make 'explain' scoring 16 points.

Is there a word on this page that jumps out as the most common?
As far as popular words go, there's 'plain', which ranks as the 821^st most common word.

Is there an example word from this page which might be deemed as unique?
A good example of a weird word from this page is 'chaplain'. It means "1. An ecclesiastic who has a chapel, or who performs religious service in a chapel. 2. A clergyman who is officially atteched to the army or navy, to some public institution, or to a family or court, for the purpose of performing divine service. 3. Any person (clergyman or layman)...".

How many letters are in the longest word on this page?
There are 19 letters in the word 'basicytoparaplastin', which makes it the biggest word on our list.