9-Letter Words Matching _____D__R

There are 13 9-letter words that match _____D__R. 10 are common words, such as BALLADEER and BRIGADIER. A rarer one is UNREADIER. In this set, E is the most frequent open letter (12 words). 4 words contain a doubled letter.

Full list 13

balladeerbrigadiergrenadierpompadourraggediersplendourstraddlerthreadierunhandierwrongdoerforbidderprejudgerunreadier

About this list

Words
13 (10 common words)
Common example
balladeer
Rare example
unreadier
Doubled letters
4
Ending in S
0
Most frequent letter
E (12)

Questions

How many 9-letter words matching _____d__r are there?

13. 10 of them are common words.

What is a common example?

BALLADEER is among the common words in this set.