15-Letter Words Matching ____SP_________

There are 22 15-letter words that match ____SP_________. 5 are common words, such as ATMOSPHERICALLY and OVERSPECIALIZED. A rarer one is TRANSPOSITIONAL. 5 words contain a doubled letter.

Full list 22

atmosphericallyoverspecializedoverspecializestransplantationtransportationsjurisprudentialmenispermaceousantispeculationantispeculativeinhospitalitiesionosphericallymegasporophyllsmonospecificityoverspeculatingoverspeculationrehospitalizingsidesplittinglytransparentizedtransparentizestransparentnesstranspirationaltranspositional

About this list

Words
22 (5 common words)
Common example
atmospherically
Rare example
transpositional
Doubled letters
5
Ending in S
7

Questions

How many 15-letter words matching ____sp_________ are there?

22. 5 of them are common words.

What is a common example?

ATMOSPHERICALLY is among the common words in this set.