15-Letter Words Matching ____RN_________

There are 14 15-letter words that match ____RN_________. 4 are common words, such as EXTERNALIZATION and INTERNALIZATION. A rarer one is UNDERNUTRITIONS. 2 words contain a doubled letter.

Full list 14

externalizationinternalizationinternationallysupernumerariessupernaturalismsupernaturalistalternativenessexternalisationgovernmentalismgovernmentalistgovernmentalizeinternucleotidesupernutritionsundernutritions

About this list

Words
14 (4 common words)
Common example
externalization
Rare example
undernutritions
Doubled letters
2
Ending in S
4

Questions

How many 15-letter words matching ____rn_________ are there?

14. 4 of them are common words.

What is a common example?

EXTERNALIZATION is among the common words in this set.