12-Letter Words Matching D_______D___

There are 12 12-letter words that match D_______D___. 6 are common words, such as DICOTYLEDONS and DIMINUENDOES. A rarer one is DUMBFOUNDERS. In this set, O is the most frequent open letter (10 words). 3 words contain a doubled letter.

Full list 12

dicotyledonsdiminuendoesdiscommodingdisregardfuldisregardingdumbfoundingdiplocardiacdisaccordingdiscommoditydodecahedraldodecahedrondumbfounders

About this list

Words
12 (6 common words)
Common example
dicotyledons
Rare example
dumbfounders
Doubled letters
3
Ending in S
3
Most frequent letter
O (10)

Questions

How many 12-letter words matching d_______d___ are there?

12. 6 of them are common words.

What is a common example?

DICOTYLEDONS is among the common words in this set.