12-Letter Words Matching D_________A_

There are 24 12-letter words that match D_________A_. 2 are common words, such as DEPARTMENTAL and DIFFERENTIAL. A rarer one is DYSRHYTHMIAS. In this set, L is the most frequent open letter (21 words). 3 words contain a doubled letter.

Full list 24

departmentaldifferentialdeclensionaldefinitionaldenotationaldentilingualdepositionalderivationaldialecticiandifferentiaediplocardiacdiscretionaldistortionaldodecahedraldorsiventraldorsoventraldiagnosticaldibenzofurandifunctionaldigressionaldilatationaldiverticulardorsolateraldysrhythmias

About this list

Words
24 (2 common words)
Common example
departmental
Rare example
dysrhythmias
Doubled letters
3
Ending in S
1
Most frequent letter
L (21)

Questions

How many 12-letter words matching d_________a_ are there?

24. 2 of them are common words.

What is a common example?

DEPARTMENTAL is among the common words in this set.