13-Letter Words Matching _________R_A_

There are 45 13-letter words that match _________R_A_. 10 are common words, such as AMBASSADORIAL and ANTIBACTERIAL. A rarer one is SULFONYLUREAS. In this set, I is the most frequent open letter (39 words). 4 words contain a doubled letter.

Full list 45

Common words

ambassadorialantibacterialauthoritariangubernatorialhypochondriachypochondriasinquisitorialnonindustrialproprietorialvaledictorianachlorhydriascombinatorial
ambassadorialantibacterialauthoritariangubernatorialhypochondriachypochondriasinquisitorialnonindustrialproprietorialvaledictorianachlorhydriascombinatorialcommunitariandocumentarianexterritorialhematothermalintersidereallegislatorialmitochondrialphalansterianpostmenstrualpreindustrialprogenitorialsubequatorialsuburbicarianterpsichoreancounterstreamcounterthreatelectrodermalexpurgatorialinegalitarianmetacercariaemetacercarialmicrofilariaemicrofilarialmycobacterialnecessitariannonmainstreamnonmanagerialnonvegetarianphosphaturiaspostlapsarianprocuratorialprosecutorialsulfonylureas

About this list

Words
45 (10 common words)
Common example
ambassadorial
Rare example
sulfonylureas
Doubled letters
4
Ending in S
4
Most frequent letter
I (39)

Questions

How many 13-letter words matching _________r_a_ are there?

45. 10 of them are common words.

What is a common example?

AMBASSADORIAL is among the common words in this set.