13-Letter Words Matching ______N____S_

There are 18 13-letter words that match ______N____S_. 6 are common words, such as BOARDINGHOUSE and CLEARINGHOUSE. A rarer one is SUBSTANCELESS. 6 words contain a doubled letter.

Full list 18

boardinghouseclearinghousetelevangelismtelevangelistuncleanlinessunfriendliestceremonialismceremonialistcountinghousedoctrinairismdocumentaristmillennialismmillennialistmillionairessmonumentalismcontainerlessdocumentalistsubstanceless

About this list

Words
18 (6 common words)
Common example
boardinghouse
Rare example
substanceless
Doubled letters
6
Ending in S
4

Questions

How many 13-letter words matching ______n____s_ are there?

18. 6 of them are common words.

What is a common example?

BOARDINGHOUSE is among the common words in this set.