13-Letter Words Matching S_________N__

There are 51 13-letter words that match S_________N__. 11 are common words, such as SAILBOARDINGS and SCHIZOPHRENIA. A rarer one is SUPRARATIONAL. In this set, I is the most frequent open letter (43 words). 14 words contain a doubled letter.

Full list 51

Common words

sailboardingsschizophreniaschizophrenicshipbuildingssleepwalkingssnowboardingssteamfittingsstockbrokingsstorytellingssubcontinentssupranationalshadowboxings
sailboardingsschizophreniaschizophrenicshipbuildingssleepwalkingssnowboardingssteamfittingsstockbrokingsstorytellingssubcontinentssupranationalshadowboxingsshareholdingssmallholdingsspeakerphonessplatterpunkssubconferencesupercolumnarsupernationalsuppositionalsurfboardingssafecrackingssandpaintingssaturnalianlyscapegoatingsschizophrenesseptentrionalsheepherdingsslaveholdingssnowmobilingssomnifacientssonneteeringsspeedboatingsspermatogenicspermatogoniasporopolleninsportfishingsstablishmentssteroidogenicstockjobbingsstonecuttingssubcomponentssulfadiazinessupercriminalsupercurrentssupereminencesuperhardenedsuperheroinessuperpersonalsuperregionalsuprarational

About this list

Words
51 (11 common words)
Common example
sailboardings
Rare example
suprarational
Doubled letters
14
Ending in S
32
Most frequent letter
I (43)

Questions

How many 13-letter words matching s_________n__ are there?

51. 11 of them are common words.

What is a common example?

SAILBOARDINGS is among the common words in this set.