15-Letter Words Containing XP

There are 22 15-letter words that contain XP. 7 are common words, such as EXPANSIVENESSES and EXPEDITIOUSNESS. A rarer one is OVEREXPECTATION. In this set, I is the most frequent open letter (22 words). 6 words contain a doubled letter.

Full list 22

expansivenessesexpeditiousnessexpensivenessesexperimentationexplosivenessesexpressionisticinexpensivenessexperientialismexperimentalismexperimentalistexperimentalizeexponentiationsinexplicabilitynonexperimentalblaxploitationsexpandabilitiesexpansibilitiesexpendabilitiesexportabilitiesnonexploitationnonexploitativeoverexpectation

About this list

Words
22 (7 common words)
Common example
expansivenesses
Rare example
overexpectation
Doubled letters
6
Ending in S
11
Most frequent letter
I (22)

Questions

How many 15-letter words containing xp are there?

22. 7 of them are common words.

What is a common example?

EXPANSIVENESSES is among the common words in this set.