12-Letter Words Matching _____D____R_

There are 18 12-letter words that match _____D____R_. 8 are common words, such as GRAVEDIGGERS and GROUNDWATERS. A rarer one is TURBIDIMETRY. In this set, E is the most frequent open letter (15 words). 4 words contain a doubled letter.

Full list 18

gravediggersgroundwatershaberdashershaberdasheryintroductorypetrodollarsscrewdriversskullduggeryinterdictoryliquidambarsorthodontureunderdrawerswitchdoctorsditchdiggersinterdealersinterdictorspteridospermturbidimetry

About this list

Words
18 (8 common words)
Common example
gravediggers
Rare example
turbidimetry
Doubled letters
4
Ending in S
11
Most frequent letter
E (15)

Questions

How many 12-letter words matching _____d____r_ are there?

18. 8 of them are common words.

What is a common example?

GRAVEDIGGERS is among the common words in this set.