Words that start with 'o' and contain 'izi'

What is the most common word that starts with 'o' and includes 'izi'?
The most common word for the combination you searched is 'organizing'.

What's the longest word you can assemble using words that start with 'o' and include 'izi'?
The word 'overintellectualizing' contains 21 characters.

How many words is it possible to make using this combination of letters?
On this list of words that start with 'o' and contain 'izi', you have 71 outstanding entries that are possible in total.