12-Letter Words Matching T_N_________

There are 18 12-letter words that match T_N_________. 6 are common words, such as TANGENTIALLY and TANGIBLENESS. A rarer one is TUNABILITIES. 7 words contain a doubled letter.

Full list 18

tangentiallytangiblenesstenabilitiestendernessestendinitisestendonitisestensiometerstonsillotomytunelessnesstenderometertendinitidestendonitidestenebrionidstensiometrictinctoriallytinsmithingstonelessnesstunabilities

About this list

Words
18 (6 common words)
Common example
tangentially
Rare example
tunabilities
Doubled letters
7
Ending in S
13

Questions

How many 12-letter words matching t_n_________ are there?

18. 6 of them are common words.

What is a common example?

TANGENTIALLY is among the common words in this set.