15-Letter Words Matching ___S_________N_

There are 16 15-letter words that match ___S_________N_. 6 are common words, such as CLASSIFICATIONS and NONSPECIALIZING. A rarer one is TRISOCTAHEDRONS. In this set, I is the most frequent open letter (16 words). 5 words contain a doubled letter.

Full list 16

classificationsnonspecializingpressurizationspresuppositionsreestablishmentsubstantiationsphosphocreatinephosphoproteinsmissionizationsnonsegregationsphosphorylatingplasticizationssensualizationssubspecializingsubstantivizingtrisoctahedrons

About this list

Words
16 (6 common words)
Common example
classifications
Rare example
trisoctahedrons
Doubled letters
5
Ending in S
10
Most frequent letter
I (16)

Questions

How many 15-letter words matching ___s_________n_ are there?

16. 6 of them are common words.

What is a common example?

CLASSIFICATIONS is among the common words in this set.