10-Letter Words Matching D________C

There are 21 10-letter words that match D________C. 4 are common words, such as DEMOCRATIC and DIAGNOSTIC. A rarer one is DYSKINETIC. In this set, I is the most frequent open letter (21 words). 3 words contain a doubled letter.

Full list 21

democraticdiagnosticdielectricdiplomaticdiacausticdiachronicdiathermicdiphthericdisyllabicdysentericdysplasticdystrophicdecametricdekametricdiageneticdiarrheticdilemmaticdiphyleticdosimetricdynamisticdyskinetic

About this list

Words
21 (4 common words)
Common example
democratic
Rare example
dyskinetic
Doubled letters
3
Ending in S
0
Most frequent letter
I (21)

Questions

How many 10-letter words matching d________c are there?

21. 4 of them are common words.

What is a common example?

DEMOCRATIC is among the common words in this set.