15-Letter Words Matching ____N____E_____

There are 20 15-letter words that match ____N____E_____. 9 are common words, such as BUSINESSPERSONS and GEOENGINEERINGS. A rarer one is UNCONCERNEDNESS. 8 words contain a doubled letter.

Full list 20

businesspersonsgeoengineeringsinconsequentialinconsistenciesinconveniencingnonintellectualnoninterferencenoninterventionuncontroversialbioengineeringsnonintersectingplainspokennessprointerventionarrondissementsbraunschweigersinconvenienciesnonenforcementsnonengineeringsnoninvolvementsunconcernedness

About this list

Words
20 (9 common words)
Common example
businesspersons
Rare example
unconcernedness
Doubled letters
8
Ending in S
12

Questions

How many 15-letter words matching ____n____e_____ are there?

20. 9 of them are common words.

What is a common example?

BUSINESSPERSONS is among the common words in this set.