13-Letter Words Matching ______T_____R

There are 19 13-letter words that match ______T_____R. 4 are common words, such as CONCERTMASTER and SCHOOLTEACHER. A rarer one is REFLECTOMETER. In this set, E is the most frequent open letter (17 words). 3 words contain a doubled letter.

Full list 19

concertmasterschoolteachersubcontractorunspectacularauthenticatorcharacterizercongratulatorconventioneerpneumatometerrefractometersustentacularunderstrapperblanketflowerdeconstructorhemacytometerhemocytometerpredestinatorreconstructorreflectometer

About this list

Words
19 (4 common words)
Common example
concertmaster
Rare example
reflectometer
Doubled letters
3
Ending in S
0
Most frequent letter
E (17)

Questions

How many 13-letter words matching ______t_____r are there?

19. 4 of them are common words.

What is a common example?

CONCERTMASTER is among the common words in this set.