10-Letter Words Matching ____A__C__

There are 15 10-letter words that match ____A__C__. 3 are common words, such as MECHANICAL and PICKABACKS. A rarer one is ULTRAVACUA. In this set, I is the most frequent open letter (11 words). 1 words contain a doubled letter.

Full list 15

mechanicalpickabackssabbaticalclimaticalhuckabacksprelaticalultrafichedogmaticalepicalycesfortalicesgentamicinmuckamucksportapacksultramicroultravacua

About this list

Words
15 (3 common words)
Common example
mechanical
Rare example
ultravacua
Doubled letters
1
Ending in S
6
Most frequent letter
I (11)

Questions

How many 10-letter words matching ____a__c__ are there?

15. 3 of them are common words.

What is a common example?

MECHANICAL is among the common words in this set.