12-Letter Words Matching ____D_O_____

There are 19 12-letter words that match ____D_O_____. 8 are common words, such as ARCHDIOCESAN and ARCHDIOCESES. A rarer one is UNHYDROLYZED. In this set, R is the most frequent open letter (16 words). 6 words contain a doubled letter.

Full list 19

archdiocesanarchdiocesesblindfoldingbloodmobilesdreadnoughtsfieldworkersgrandmothersnamedroppingbasidiosporeconidiophorebackdroppingbeardtonguesbreadboardedcatadioptricchondroitinsmeridionallyparadroppingspeedboatingunhydrolyzed

About this list

Words
19 (8 common words)
Common example
archdiocesan
Rare example
unhydrolyzed
Doubled letters
6
Ending in S
7
Most frequent letter
R (16)

Questions

How many 12-letter words matching ____d_o_____ are there?

19. 8 of them are common words.

What is a common example?

ARCHDIOCESAN is among the common words in this set.