13-Letter Words Matching _A__T________

There are 21 13-letter words that match _A__T________. 9 are common words, such as CAPITULATIONS and DAUNTLESSNESS. A rarer one is VACATIONLANDS. In this set, N is the most frequent open letter (21 words). 10 words contain a doubled letter.

Full list 21

capitulationsdauntlessnessfacetiousnessfaultfindingsfaultlessnesssaintlinessessalutatorianssanctimonioustaciturnitiescatatonicallygametogenesislatitudinallyfanaticalnessgametogeneseshabitablenessnaphthylaminepainterlinesspalatablenessparathormonessanitizationsvacationlands

About this list

Words
21 (9 common words)
Common example
capitulations
Rare example
vacationlands
Doubled letters
10
Ending in S
18
Most frequent letter
N (21)

Questions

How many 13-letter words matching _a__t________ are there?

21. 9 of them are common words.

What is a common example?

CAPITULATIONS is among the common words in this set.