Words that start with 'bir' and contain 'c'

What's the largest word you can make with this list?
The longest word that's possible to construct from this list is 'birectangular', and it consists of 13 characters.

Is there an example word from this page which could be deemed as unusual?
Our team considers 'birectangular' to be the most peculiar word you can throw together. 'Birectangular' is defined as "Containing or having two right angles; as, a birectangular spherical triangle.", according to the English dictionary.

In Scrabble, what's the highest possible score you can get from this list of words that start with 'bir' and contain 'c'?
One could make 'birchism' scoring 17 points in Scrabble.

How many viable words are possible to put together using the combination specified?
From this list of words that start with 'bir' and include 'c', you have 31 effective combinations that can be selected.

What is the most common word that starts with 'bir' and includes 'c' in the dictionary?
The most common word in the dictionary according to our system is 'birch', which is in fact the 15954^th most common word in this list.