15-Letter Words Matching ___R_______U___

There are 18 15-letter words that match ___R_______U___. 6 are common words, such as DISRESPECTFULLY and EXTRACURRICULAR. A rarer one is ULTRASTRUCTURES. In this set, T is the most frequent open letter (17 words). 4 words contain a doubled letter.

Full list 18

disrespectfullyextracurricularhydrocephalusesinfrastructuressurreptitiouslyunpretentiouslyhydrometallurgyinfrastructuraloverambitiouslymacrostructuralmacrostructuresmicroearthquakemicrostructuralmicrostructuressubreptitiouslytetrahydrofuranultrastructuralultrastructures

About this list

Words
18 (6 common words)
Common example
disrespectfully
Rare example
ultrastructures
Doubled letters
4
Ending in S
5
Most frequent letter
T (17)

Questions

How many 15-letter words matching ___r_______u___ are there?

18. 6 of them are common words.

What is a common example?

DISRESPECTFULLY is among the common words in this set.