14-Letter Words Matching ________T_R___

There are 54 14-letter words that match ________T_R___. 10 are common words, such as CONSERVATORIES and CONSPIRATORIAL. A rarer one is SUBSECRETARIES. In this set, I is the most frequent open letter (52 words). 5 words contain a doubled letter.

Full list 54

Common words

conservatoriesconspiratorialheadquarteringhorticulturistparamilitariespreregisteringquadrilateralsreconnoiteringreupholsteringsatisfactorilyantimilitarismcholinesterase
conservatoriesconspiratorialheadquarteringhorticulturistparamilitariespreregisteringquadrilateralsreconnoiteringreupholsteringsatisfactorilyantimilitarismcholinesteraseconservatorialcorticosteroidcorticosteronedistributariesnitrobacteriumpassementeriespisciculturistpolyunsaturateprotohistoriesquodlibetariansilviculturiststernutatoriessubdirectoriessubminiaturizeuniformitarianantimilitaristbackscatteringcitriculturistcyanobacteriumdispensatoriesethnohistorianethnohistoriesfloriculturistinflammatorilyintroductorilymisregisteringmonounsaturatemultifactorialnomenclatorialnonbarbituratenonsecretoriesnonutilitarianpectinesterasephycoerythrinspithecanthropiprestructuringprothonotarialprothonotariesprotohistorianreencounteringsubproletariatsubsecretaries

About this list

Words
54 (10 common words)
Common example
conservatories
Rare example
subsecretaries
Doubled letters
5
Ending in S
14
Most frequent letter
I (52)

Questions

How many 14-letter words matching ________t_r___ are there?

54. 10 of them are common words.

What is a common example?

CONSERVATORIES is among the common words in this set.