15-Letter Words Matching _O____________T

There are 12 15-letter words that match _O____________T. 2 are common words, such as CONSERVATIONIST and CONSTRUCTIONIST. A rarer one is ROENTGENOLOGIST. In this set, N is the most frequent open letter (12 words). 2 words contain a doubled letter.

Full list 12

conservationistconstructionistconventionalistcounterargumentcounterclaimantcounterirritantcolonizationistconfessionalistcountermovementgovernmentalistnonpsychiatristroentgenologist

About this list

Words
12 (2 common words)
Common example
conservationist
Rare example
roentgenologist
Doubled letters
2
Ending in S
0
Most frequent letter
N (12)

Questions

How many 15-letter words matching _o____________t are there?

12. 2 of them are common words.

What is a common example?

CONSERVATIONIST is among the common words in this set.