15-Letter Words Matching _____T_____A___

There are 23 15-letter words that match _____T_____A___. 6 are common words, such as ARCHITECTURALLY and INSTITUTIONALLY. A rarer one is PHOTOTROPICALLY. In this set, I is the most frequent open letter (20 words). 15 words contain a doubled letter.

Full list 23

architecturallyinstitutionallyparentheticallyradiotelegraphsradiotelegraphysympatheticallycomputationallydramaturgicallygravitationallyperistalticallyphototelegraphyphototopographyphototypographyschistosomiasesschistosomiasisanisotropicallychemotacticallykinestheticallymagistraticallynonmatriculatedorientationallyphototacticallyphototropically

About this list

Words
23 (6 common words)
Common example
architecturally
Rare example
phototropically
Doubled letters
15
Ending in S
3
Most frequent letter
I (20)

Questions

How many 15-letter words matching _____t_____a___ are there?

23. 6 of them are common words.

What is a common example?

ARCHITECTURALLY is among the common words in this set.