13-Letter Words Matching _____T___O___

There are 19 13-letter words that match _____T___O___. 8 are common words, such as ARCHITECTONIC and BREASTSTROKES. A rarer one is THROTTLEHOLDS. In this set, T is the most frequent open letter (16 words). 4 words contain a doubled letter.

Full list 19

architectonicbreaststrokesbulletproofedcomputationalgravitationalhyperthyroidsinstitutionalspinsterhoodsconfutationalconnotationalexpectationalincantationalorientationalpermutationalrepartitionedbreaststrokernonantibioticteleutosporesthrottleholds

About this list

Words
19 (8 common words)
Common example
architectonic
Rare example
throttleholds
Doubled letters
4
Ending in S
5
Most frequent letter
T (16)

Questions

How many 13-letter words matching _____t___o___ are there?

19. 8 of them are common words.

What is a common example?

ARCHITECTONIC is among the common words in this set.