15-Letter Words Matching A____________N_

There are 21 15-letter words that match A____________N_. 3 are common words, such as ACKNOWLEDGEMENT and ADMINISTRATIONS. A rarer one is AXIOMATIZATIONS. In this set, T is the most frequent open letter (21 words). 6 words contain a doubled letter.

Full list 21

acknowledgementadministrationsauthenticationsaftersensationsanagrammatizinganticoagulatingautosuggestionsaerosolizationsalkalinizationsallegorizationsammonificationsanticarcinogensanticorruptionsantidepressionsantidevelopmentantishopliftingantisubversionsapolipoproteinsautomatizationsaxiomatisationsaxiomatizations

About this list

Words
21 (3 common words)
Common example
acknowledgement
Rare example
axiomatizations
Doubled letters
6
Ending in S
16
Most frequent letter
T (21)

Questions

How many 15-letter words matching a____________n_ are there?

21. 3 of them are common words.

What is a common example?

ACKNOWLEDGEMENT is among the common words in this set.