13-Letter Words Matching A_A__________

There are 28 13-letter words that match A_A__________. 10 are common words, such as AMALGAMATIONS and ANACHRONISTIC. A rarer one is AZATHIOPRINES. 9 words contain a doubled letter.

Full list 28

Common words

amalgamationsanachronisticanaerobicallyanaesthetistsanaesthetizedanaesthetizesanalogousnessanathematizedanathematizesapatheticallyamativenessesanachronously
amalgamationsanachronisticanaerobicallyanaesthetistsanaesthetizedanaesthetizesanalogousnessanathematizedanathematizesapatheticallyamativenessesanachronouslyanagrammatizeanalphabeticsanaphrodisiacapatosaurusesarachnophobiaatavisticallyadaptednessesagamospermiesanalphabetismanalyticitiesanalyzabilityanaphoricallyanaphylactoidarabicizationavailablenessazathioprines

About this list

Words
28 (10 common words)
Common example
amalgamations
Rare example
azathioprines
Doubled letters
9
Ending in S
13

Questions

How many 13-letter words matching a_a__________ are there?

28. 10 of them are common words.

What is a common example?

AMALGAMATIONS is among the common words in this set.