14-Letter Words Matching __________N_N_

There are 37 14-letter words that match __________N_N_. 10 are common words, such as COUNTERSIGNING and DISILLUSIONING. A rarer one is THERMOREMANENT. In this set, I is the most frequent open letter (35 words). 8 words contain a doubled letter.

Full list 37

Common words

countersigningdisillusioningforeshorteningmalfunctioningnonthreateningpredeterminingpropositioningreapportioningreconditioningrequisitioningepiphenomenonsnonfunctioning
countersigningdisillusioningforeshorteningmalfunctioningnonthreateningpredeterminingpropositioningreapportioningreconditioningrequisitioningepiphenomenonsnonfunctioningphenosafraninephthalocyaninerepartitioningsupercontinentunenlighteningdeconditioningdigitoxigeninselectrowinninghemagglutininsisoagglutininsmisfunctioningmispositioningmulticomponentnonrecombinantovercautioningoverconcerningoverexplainingoversweeteningovertighteningposttensioningpseudopregnantreprovisioningsporopolleninssuperhardeningthermoremanent

About this list

Words
37 (10 common words)
Common example
countersigning
Rare example
thermoremanent
Doubled letters
8
Ending in S
5
Most frequent letter
I (35)

Questions

How many 14-letter words matching __________n_n_ are there?

37. 10 of them are common words.

What is a common example?

COUNTERSIGNING is among the common words in this set.