12-Letter Words Matching ____N_____R_

There are 40 12-letter words that match ____N_____R_. 11 are common words, such as BRAINTEASERS and CHRONOMETERS. A rarer one is STERNUTATORS. In this set, E is the most frequent open letter (37 words). 10 words contain a doubled letter.

Full list 40

Common words

brainteaserschronometersdisencumbersexpansionarygreengrocersgroundwatersincineratorsintensifiersnomenclaturereconnoiterstyrannosaursactinometers
brainteaserschronometersdisencumbersexpansionarygreengrocersgroundwatersincineratorsintensifiersnomenclaturereconnoiterstyrannosaursactinometersannunciatorscotoneastersdenunciatoryeigenvectorsgreengroceryremuneratorsrenunciatorysalinometerssternutatorytrainbearerswisenheimersannunciatorybioengineersbrainwasherschronologerscogeneratorsgreenbackersgreenkeepersgreenmailersjournalizersmononuclearsnomenclatorsovernighterspotentiatorsregeneratorsremuneratoryspringwaterssternutators

About this list

Words
40 (11 common words)
Common example
brainteasers
Rare example
sternutators
Doubled letters
10
Ending in S
32
Most frequent letter
E (37)

Questions

How many 12-letter words matching ____n_____r_ are there?

40. 11 of them are common words.

What is a common example?

BRAINTEASERS is among the common words in this set.