12-Letter Words Matching V_________N_

There are 20 12-letter words that match V_________N_. 11 are common words, such as VACCINATIONS and VACILLATIONS. A rarer one is VOLATILISING. In this set, I is the most frequent open letter (20 words). 5 words contain a doubled letter.

Full list 20

vaccinationsvacillationsvaledictionsvariegationsventilationsvindicationsvituperatingvivisectionsvociferatingvolatilizingvolunteeringverdigrisingvacationlandvenesectionsvinegarroonsvacuolationsvasopressinsvaticinatingvesiculatingvolatilising

About this list

Words
20 (11 common words)
Common example
vaccinations
Rare example
volatilising
Doubled letters
5
Ending in S
11
Most frequent letter
I (20)

Questions

How many 12-letter words matching v_________n_ are there?

20. 11 of them are common words.

What is a common example?

VACCINATIONS is among the common words in this set.