15-Letter Words Matching T____T_________

There are 12 15-letter words that match T____T_________. 5 are common words, such as TALKATIVENESSES and TENTATIVENESSES. A rarer one is TRADITIONALIZES. In this set, I is the most frequent open letter (12 words). 6 words contain a doubled letter.

Full list 12

talkativenessestentativenessestraditionalismstraditionaliststrinitrotoluenetrinitrobenzeneterritorialismsterritorialiststerritorializedterritorializestraditionalizedtraditionalizes

About this list

Words
12 (5 common words)
Common example
talkativenesses
Rare example
traditionalizes
Doubled letters
6
Ending in S
8
Most frequent letter
I (12)

Questions

How many 15-letter words matching t____t_________ are there?

12. 5 of them are common words.

What is a common example?

TALKATIVENESSES is among the common words in this set.