13-Letter Words Matching ____T__R_____

There are 35 13-letter words that match ____T__R_____. 12 are common words, such as ARBITRARINESS and ARISTOCRACIES. A rarer one is TRUSTWORTHILY. In this set, I is the most frequent open letter (31 words). 9 words contain a doubled letter.

Full list 35

Common words

arbitrarinessaristocraciescryptographerembittermentsgenitourinarymeritocraciesreauthorizingreintegratingreintegrationsportswriterstrustworthieruninterrupted
arbitrarinessaristocraciescryptographerembittermentsgenitourinarymeritocraciesreauthorizingreintegratingreintegrationsportswriterstrustworthieruninterruptedadiathermancyantiterrorismantiterroristcryptographicheartburningssplatterpunkssportswritingstratigrapherstratigraphiccoauthorshipscounterraidedcounterreformcryotherapiesmediterraneannightmarishlyparathormonesplantocraciesreintegrativescintigraphicsomatotrophinsomatotropinsstratocraciestrustworthily

About this list

Words
35 (12 common words)
Common example
arbitrariness
Rare example
trustworthily
Doubled letters
9
Ending in S
13
Most frequent letter
I (31)

Questions

How many 13-letter words matching ____t__r_____ are there?

35. 12 of them are common words.

What is a common example?

ARBITRARINESS is among the common words in this set.