15-Letter Words Matching ____A________T_

There are 19 15-letter words that match ____A________T_. 6 are common words, such as AGGRANDIZEMENTS and AROMATHERAPISTS. A rarer one is UNCHANGEABILITY. In this set, E is the most frequent open letter (17 words). 3 words contain a doubled letter.

Full list 19

aggrandizementsaromatherapistsfundamentalistsnonparticipantsphilanthropistssensationalistscephalochordateeducationalistsimmeasurabilitytetrabranchiateexchangeabilityineradicabilityoperationalistsoveradjustmentsoverassessmentspostadolescentssacramentalistsultramodernistsunchangeability

About this list

Words
19 (6 common words)
Common example
aggrandizements
Rare example
unchangeability
Doubled letters
3
Ending in S
13
Most frequent letter
E (17)

Questions

How many 15-letter words matching ____a________t_ are there?

19. 6 of them are common words.

What is a common example?

AGGRANDIZEMENTS is among the common words in this set.