15-Letter Words Matching ____T_____R____

There are 19 15-letter words that match ____T_____R____. 3 are common words, such as LATITUDINARIANS and MOUNTAINEERINGS. A rarer one is STADTHOLDERSHIP. In this set, O is the most frequent open letter (17 words). 5 words contain a doubled letter.

Full list 19

latitudinariansmountaineeringsvaletudinarianscrystallographycountercurrentselectrophoreseselectrophoresiselectrophoreticelectrothermicsbiostratigraphycomptrollershipcounterchargingcounterguerillaelectrophoresednonutilitariansroentgenographysolitudinariansstadtholderatesstadtholdership

About this list

Words
19 (3 common words)
Common example
latitudinarians
Rare example
stadtholdership
Doubled letters
5
Ending in S
10
Most frequent letter
O (17)

Questions

How many 15-letter words matching ____t_____r____ are there?

19. 3 of them are common words.

What is a common example?

LATITUDINARIANS is among the common words in this set.