14-Letter Words Matching _____X________

There are 23 14-letter words that match _____X________. 4 are common words, such as APPROXIMATIONS and CONTEXTUALIZED. A rarer one is UNISEXUALITIES. In this set, I is the most frequent open letter (21 words). 5 words contain a doubled letter.

Full list 23

approximationscontextualizedcontextualizesoverexercisingoverexcitementcarboxylationshydroxyapatitehydroxylamineshydroxylationshydroxyprolineinflexiblenessmethoxyfluraneoverexaggerateoverexpansionsoverexplainingoverexploitingoverextensionsoverextractionpansexualitiespostexperiencepremaxillariessubmaxillariesunisexualities

About this list

Words
23 (4 common words)
Common example
approximations
Rare example
unisexualities
Doubled letters
5
Ending in S
12
Most frequent letter
I (21)

Questions

How many 14-letter words matching _____x________ are there?

23. 4 of them are common words.

What is a common example?

APPROXIMATIONS is among the common words in this set.