15-Letter Words Matching _D_____________

There are 18 15-letter words that match _D_____________. 4 are common words, such as ADMINISTRATIONS and ADMISSIBILITIES. A rarer one is IDIOMATICNESSES. 9 words contain a doubled letter.

Full list 18

administrationsadmissibilitiesadventurousnessidentificationsadenocarcinomasadenoidectomiesadmirablenesseseducationalistsidenticalnessesodoriferousnessadenohypophysesadenohypophysisadjustabilitiesadrenalectomiesadversarinessesadvisablenessesideographicallyidiomaticnesses

About this list

Words
18 (4 common words)
Common example
administrations
Rare example
idiomaticnesses
Doubled letters
9
Ending in S
17

Questions

How many 15-letter words matching _d_____________ are there?

18. 4 of them are common words.

What is a common example?

ADMINISTRATIONS is among the common words in this set.