13-Letter Words Matching ___A______A__

There are 20 13-letter words that match ___A______A__. 7 are common words, such as CARAVANSERAIS and HUMANITARIANS. A rarer one is STRATOVOLCANO. In this set, S is the most frequent open letter (17 words). 2 words contain a doubled letter.

Full list 20

caravanseraishumanitariansmegalomaniacsnonagenarianssexagenariansstraightawaystotalitariansdisarticulateequalitariansimparipinnatemelancholiacsmetaphosphateorganotherapycocarboxylasedecarboxylasedecarboxylategalactosidasemisappraisalsmisarticulatestratovolcano

About this list

Words
20 (7 common words)
Common example
caravanserais
Rare example
stratovolcano
Doubled letters
2
Ending in S
10
Most frequent letter
S (17)

Questions

How many 13-letter words matching ___a______a__ are there?

20. 7 of them are common words.

What is a common example?

CARAVANSERAIS is among the common words in this set.