13-Letter Words Matching T__O_________

There are 22 13-letter words that match T__O_________. 6 are common words, such as THEOLOGICALLY and THEORETICALLY. A rarer one is TUMORIGENESIS. In this set, I is the most frequent open letter (19 words). 8 words contain a doubled letter.

Full list 22

theologicallytheoreticallytheoreticiansthroatinessestopographicaltypographicaltopologicallytaxonomicallythrombokinasetoxoplasmosistypologicallytenosynovitistheocentrismstheophyllinestheorizationsthioridazinesthroatlatchesthrottleholdstoxoplasmosestubocurarinestumorigenesestumorigenesis

About this list

Words
22 (6 common words)
Common example
theologically
Rare example
tumorigenesis
Doubled letters
8
Ending in S
14
Most frequent letter
I (19)

Questions

How many 13-letter words matching t__o_________ are there?

22. 6 of them are common words.

What is a common example?

THEOLOGICALLY is among the common words in this set.