13-Letter Words Matching _N__________R

There are 19 13-letter words that match _N__________R. 3 are common words, such as INTRAMUSCULAR and UNDERACHIEVER. A rarer one is UNDERGROUNDER. In this set, E is the most frequent open letter (16 words). 6 words contain a doubled letter.

Full list 19

intramuscularunderachieverunspectacularindoctrinatorintelligencerintercellularintracellularknickerbockerknuckledusterpneumatometerunderstrapperantiforeignerinterbehaviorintergranularinterobserverinterpellatorintravascularknuckleballerundergrounder

About this list

Words
19 (3 common words)
Common example
intramuscular
Rare example
undergrounder
Doubled letters
6
Ending in S
0
Most frequent letter
E (16)

Questions

How many 13-letter words matching _n__________r are there?

19. 3 of them are common words.

What is a common example?

INTRAMUSCULAR is among the common words in this set.