14-Letter Words Matching ____O__S______

There are 15 14-letter words that match ____O__S______. 5 are common words, such as EFFLORESCENCES and IMPROVISATIONS. A rarer one is REPROVISIONING. In this set, E is the most frequent open letter (13 words). 5 words contain a doubled letter.

Full list 15

efflorescencesimprovisationsinflorescencesunprofessionalvideocassettesaudiocassettesprotohistoriesethnohistorianethnohistoriesimprovisatoresleukodystrophymicrocassettesnonhomosexualsprotohistorianreprovisioning

About this list

Words
15 (5 common words)
Common example
efflorescences
Rare example
reprovisioning
Doubled letters
5
Ending in S
10
Most frequent letter
E (13)

Questions

How many 14-letter words matching ____o__s______ are there?

15. 5 of them are common words.

What is a common example?

EFFLORESCENCES is among the common words in this set.