12-Letter Words Matching D_A_________

There are 39 12-letter words that match D_A_________. 9 are common words, such as DEACTIVATING and DEACTIVATION. A rarer one is DRAPEABILITY. In this set, I is the most frequent open letter (36 words). 10 words contain a doubled letter.

Full list 39

Common words

deactivatingdeactivationdeadlinessesdeathwatchesdiabolicallydiagrammaticdiamondbacksdraftinessesdramaticallydiagonalizeddiagonalizesdiagrammable
deactivatingdeactivationdeadlinessesdeathwatchesdiabolicallydiagrammaticdiamondbacksdraftinessesdramaticallydiagonalizeddiagonalizesdiagrammabledialecticiandialecticismdialectologydiamagnetismdiaphanouslydiaphoreticsdiastrophismdiatomaceousdiatonicallydiazomethanedramaturgiesdraughtboarddwarfishnessdeacidifyingdeactivatorsdeaminationsdiabetogenicdiageotropicdiagnoseablediagnosticaldialogicallydiapositivesdiastereomerdiatessaronsdraftspersondramatizabledrapeability

About this list

Words
39 (9 common words)
Common example
deactivating
Rare example
drapeability
Doubled letters
10
Ending in S
13
Most frequent letter
I (36)

Questions

How many 12-letter words matching d_a_________ are there?

39. 9 of them are common words.

What is a common example?

DEACTIVATING is among the common words in this set.