14-Letter Words Matching _________C_E__

There are 14 14-letter words that match _________C_E__. 2 are common words, such as KNICKERBOCKERS and SCHOOLTEACHERS. A rarer one is ULTRAEFFICIENT. In this set, R is the most frequent open letter (13 words). 6 words contain a doubled letter.

Full list 14

knickerbockersschoolteachersabsorbefacientaffenpinschersbackscratchersoystercatchersparturifacientcampylobacterscounterpicketshepatopancreashyperefficientsuperefficientsystematicnessultraefficient

About this list

Words
14 (2 common words)
Common example
knickerbockers
Rare example
ultraefficient
Doubled letters
6
Ending in S
9
Most frequent letter
R (13)

Questions

How many 14-letter words matching _________c_e__ are there?

14. 2 of them are common words.

What is a common example?

KNICKERBOCKERS is among the common words in this set.