15-Letter Words Starting With EXT

There are 16 15-letter words that start with EXT. 5 are common words, such as EXTEMPORIZATION and EXTENSIVENESSES. A rarer one is EXTRUDABILITIES. In this set, I is the most frequent open letter (15 words). 5 words contain a doubled letter.

Full list 16

extemporizationextensivenessesexternalizationextracurricularextraordinarilyextemporarinessextralinguisticextemporisationextendabilitiesextensibilitiesexteriorizationexternalisationextinguishmentsextracellularlyextrajudiciallyextrudabilities

About this list

Words
16 (5 common words)
Common example
extemporization
Rare example
extrudabilities
Doubled letters
5
Ending in S
6
Most frequent letter
I (15)

Questions

How many 15-letter words starting with ext are there?

16. 5 of them are common words.

What is a common example?

EXTEMPORIZATION is among the common words in this set.