Words that start with 'ir' and contain 'g'

What's the max number of words one can construct from this combination of letters?
From this list of words that start with 'ir' and contain 'g', you have 90 brilliant combinations which can be selected.

What is a strange word from all the word combinations possible ?
The most unusual word based on a recent poll is 'irrugate'. 'Irrugate' is defined as "To wrinkle. [Obs.]", according to the dictionary.

What is the highest scoring word you can play in Scrabble ?
For 11 points in Scrabble, you could use 'irking'.

What's the most common word that starts with 'ir' and includes 'g' in the dictionary?
'Irregular' is the most well-known word from this page, ranked 6486^th most common word.

What's the largest word you can derive with the combination of letters specified?
The biggest word one can construct from this combination is 'irrecognizability', which consists of 17 characters.