11-Letter Words Matching D_______U__

There are 18 11-letter words that match D_______U__. 7 are common words, such as DECREPITUDE and DELPHINIUMS. A rarer one is DROPPERFULS. In this set, I is the most frequent open letter (16 words). 4 words contain a doubled letter.

Full list 18

decrepitudedelphiniumsderailleursdispleasuredisquietudedivestituredysprosiumsdeclinaturedeconstructdiddlysquatdisjuncturedisseminulediverticuladuplicaturedisembogueddisemboguesdouroucoulidropperfuls

About this list

Words
18 (7 common words)
Common example
decrepitude
Rare example
dropperfuls
Doubled letters
4
Ending in S
5
Most frequent letter
I (16)

Questions

How many 11-letter words matching d_______u__ are there?

18. 7 of them are common words.

What is a common example?

DECREPITUDE is among the common words in this set.