11-Letter Words Matching A_N________

There are 15 11-letter words that match A_N________. 9 are common words, such as ABNEGATIONS and ABNORMALITY. A rarer one is ANNULATIONS. In this set, I is the most frequent open letter (15 words). 12 words contain a doubled letter.

Full list 15

abnegationsabnormalityagnosticismannexationsannihilatedannihilatesannihilatoranniversaryannotationsannabergiteannunciatedannunciatesannunciatorannualizingannulations

About this list

Words
15 (9 common words)
Common example
abnegations
Rare example
annulations
Doubled letters
12
Ending in S
6
Most frequent letter
I (15)

Questions

How many 11-letter words matching a_n________ are there?

15. 9 of them are common words.

What is a common example?

ABNEGATIONS is among the common words in this set.