15-Letter Words Matching ____S_____T____

There are 24 15-letter words that match ____S_____T____. 9 are common words, such as CLASSIFICATIONS and DISASSOCIATIONS. A rarer one is TRANSVALUATIONS. 7 words contain a doubled letter.

Full list 24

classificationsdisassociationsemulsificationspressurizationsredistributionstransformationstransmigrationstransportationsverisimilitudesautosuggestionstransvestitismsaerosolizationsantiseparatistsnonpsychiatristoversaturationsparasitizationsredistillationsreinstallationstenosynovitisestransaminationstransparentizedtransparentizestransparentnesstransvaluations

About this list

Words
24 (9 common words)
Common example
classifications
Rare example
transvaluations
Doubled letters
7
Ending in S
22

Questions

How many 15-letter words matching ____s_____t____ are there?

24. 9 of them are common words.

What is a common example?

CLASSIFICATIONS is among the common words in this set.