12-Letter Words Matching D_F_________

There are 31 12-letter words that match D_F_________. 10 are common words, such as DEFALCATIONS and DEFICIENCIES. A rarer one is DIFUNCTIONAL. In this set, I is the most frequent open letter (28 words). 10 words contain a doubled letter.

Full list 31

Common words

defalcationsdeficienciesdefinitenessdefinitivelydeflationarydefoliationsdeformationsdifferentialdifficultiesdiffractionsdefenestratedefibrillate
defalcationsdeficienciesdefinitenessdefinitivelydeflationarydefoliationsdeformationsdifferentialdifficultiesdiffractionsdefenestratedefibrillatedefinitionaldeflagrationdeflationistdeflocculatedefraudationdifferencingdifferentiaedefeminizingdefibrinateddefibrinatesdefinitizingdeflagratingdeflorationsdeforcementsdeformalizeddeformalizesdiffusionismdiffusionistdifunctional

About this list

Words
31 (10 common words)
Common example
defalcations
Rare example
difunctional
Doubled letters
10
Ending in S
11
Most frequent letter
I (28)

Questions

How many 12-letter words matching d_f_________ are there?

31. 10 of them are common words.

What is a common example?

DEFALCATIONS is among the common words in this set.