7-Letter Words Matching V____O_

There are 13 7-letter words that match V____O_. 7 are common words, such as VENISON and VERSION. A rarer one is VOMITOS. In this set, I is the most frequent open letter (10 words). 2 words contain a doubled letter.

Full list 13

venisonversionviceroyviragosvisitorvitriolvoodoosvibriosvidiconvanpoolvavasorvibrionvomitos

About this list

Words
13 (7 common words)
Common example
venison
Rare example
vomitos
Doubled letters
2
Ending in S
4
Most frequent letter
I (10)

Questions

How many 7-letter words matching v____o_ are there?

13. 7 of them are common words.

What is a common example?

VENISON is among the common words in this set.