15-Letter Words Matching _X__R__________

There are 12 15-letter words that match _X__R__________. 3 are common words, such as EXCURSIVENESSES and EXPERIMENTATION. A rarer one is EXTERNALISATION. In this set, E is the most frequent open letter (12 words). 2 words contain a doubled letter.

Full list 12

excursivenessesexperimentationexternalizationexperientialismexperimentalismexperimentalistexperimentalizeexecrablenessesexoerythrocyticexportabilitiesexteriorizationexternalisation

About this list

Words
12 (3 common words)
Common example
excursivenesses
Rare example
externalisation
Doubled letters
2
Ending in S
3
Most frequent letter
E (12)

Questions

How many 15-letter words matching _x__r__________ are there?

12. 3 of them are common words.

What is a common example?

EXCURSIVENESSES is among the common words in this set.