15-Letter Words Matching ___S_I_________

There are 15 15-letter words that match ___S_I_________. 6 are common words, such as CLASSIFICATIONS and CONSCIENTIOUSLY. A rarer one is SUBSTITUTIONARY. 8 words contain a doubled letter.

Full list 15

classificationsconscientiouslyconsciousnessesconspicuousnessconstitutionalsperspicaciouslyperspicuousnessprestidigitatorquestionabilityirasciblenessespersnicketinessplasticizationsprestigiousnessprussianizationsubstitutionary

About this list

Words
15 (6 common words)
Common example
classifications
Rare example
substitutionary
Doubled letters
8
Ending in S
9

Questions

How many 15-letter words matching ___s_i_________ are there?

15. 6 of them are common words.

What is a common example?

CLASSIFICATIONS is among the common words in this set.