15-Letter Words Matching ___R________A__

There are 18 15-letter words that match ___R________A__. 1 are common words, such as PHARMACEUTICALS and METROPOLITANATE. A rarer one is UNPROFESSIONALS. In this set, O is the most frequent open letter (16 words). 3 words contain a doubled letter.

Full list 18

pharmaceuticalsmetropolitanatemicrophotographoverconsideratepharmacotherapytetrabranchiatethermobarographunproportionateastrophotographmacrophotographmicroearthquakemicroradiographneuroblastomataneurofibrillaryovercommunicateoverextravagantoverorchestrateunprofessionals

About this list

Words
18 (1 common words)
Common example
pharmaceuticals
Rare example
unprofessionals
Doubled letters
3
Ending in S
2
Most frequent letter
O (16)

Questions

How many 15-letter words matching ___r________a__ are there?

18. 1 of them are common words.

What is a common example?

PHARMACEUTICALS is among the common words in this set.