15-Letter Words Matching ___T____N______

There are 16 15-letter words that match ___T____N______. 5 are common words, such as INSTANTANEOUSLY and INSTRUMENTALIST. A rarer one is SUBTERRANEOUSLY. In this set, A is the most frequent open letter (16 words). 3 words contain a doubled letter.

Full list 16

instantaneouslyinstrumentalistinstrumentalityinstrumentationseptuagenariansacetophenetidindextrosinistralinstrumentalismphototransistorgentlemanlinessgeotectonicallyinstantaneitiesphytoplanktonicpreterminationsquatercentenarysubterraneously

About this list

Words
16 (5 common words)
Common example
instantaneously
Rare example
subterraneously
Doubled letters
3
Ending in S
4
Most frequent letter
A (16)

Questions

How many 15-letter words matching ___t____n______ are there?

16. 5 of them are common words.

What is a common example?

INSTANTANEOUSLY is among the common words in this set.