12-Letter Words Matching ___D_A______

There are 21 12-letter words that match ___D_A______. 10 are common words, such as BIRDWATCHERS and CORDIALITIES. A rarer one is WINDJAMMINGS. In this set, I is the most frequent open letter (20 words). 2 words contain a doubled letter.

Full list 21

birdwatcherscordialitiesgladiatorialmisdiagnosedmisdiagnosesmisdiagnosisquadrangularquadraphonicsandpaperingwoodcarvingsbirdwatchingepidiascopesisodiametricsubdiaconatefundraisingshandfastingshandrailingsnondiabeticsprediabeticssandpaintingwindjammings

About this list

Words
21 (10 common words)
Common example
birdwatchers
Rare example
windjammings
Doubled letters
2
Ending in S
12
Most frequent letter
I (20)

Questions

How many 12-letter words matching ___d_a______ are there?

21. 10 of them are common words.

What is a common example?

BIRDWATCHERS is among the common words in this set.