15-Letter Words Matching _______T__T____

There are 13 15-letter words that match _______T__T____. 3 are common words, such as ADMINISTRATIONS and PLENIPOTENTIARY. A rarer one is UNDERNUTRITIONS. In this set, N is the most frequent open letter (13 words). 1 words contain a doubled letter.

Full list 13

administrationsplenipotentiarysubstantiationscircumstantiateconsubstantiateexponentiationsoverprotectionscryoprotectantsdefenestrationsprecipitantnessreregistrationssupernutritionsundernutritions

About this list

Words
13 (3 common words)
Common example
administrations
Rare example
undernutritions
Doubled letters
1
Ending in S
10
Most frequent letter
N (13)

Questions

How many 15-letter words matching _______t__t____ are there?

13. 3 of them are common words.

What is a common example?

ADMINISTRATIONS is among the common words in this set.