9-Letter Words Matching ___R____A

There are 23 9-letter words that match ___R____A. 8 are common words, such as BARRACUDA and CURRICULA. A rarer one is SPERMATIA. In this set, I is the most frequent open letter (18 words). 5 words contain a doubled letter.

Full list 23

barracudacurriculadiarrhoeaguerrillahydrangeajinrikshaneuralgiapyorrhoeaanarthriacherimoyafibromatafioriturametralgianeurogliaspirogyrasporangiaandroeciaandromedachirimoyahybridomaneuromatapuerperiaspermatia

About this list

Words
23 (8 common words)
Common example
barracuda
Rare example
spermatia
Doubled letters
5
Ending in S
0
Most frequent letter
I (18)

Questions

How many 9-letter words matching ___r____a are there?

23. 8 of them are common words.

What is a common example?

BARRACUDA is among the common words in this set.