15-Letter Words Matching T_______T______

There are 13 15-letter words that match T_______T______. 6 are common words, such as THERAPEUTICALLY and THUNDERSTRICKEN. A rarer one is TRUEHEARTEDNESS. In this set, I is the most frequent open letter (12 words). 6 words contain a doubled letter.

Full list 13

therapeuticallythunderstrickentoastmistressestransportationstrinitrotoluenetrustworthinesstransvestitismstelekineticallythunderstrikingtightfistednesstranshistoricaltransubstantialtrueheartedness

About this list

Words
13 (6 common words)
Common example
therapeutically
Rare example
trueheartedness
Doubled letters
6
Ending in S
6
Most frequent letter
I (12)

Questions

How many 15-letter words matching t_______t______ are there?

13. 6 of them are common words.

What is a common example?

THERAPEUTICALLY is among the common words in this set.