9-Letter Words Matching ___R_Z___

There are 13 9-letter words that match ___R_Z___. 2 are common words, such as APPRIZING and TERRAZZOS. A rarer one is SPOROZOON. In this set, A is the most frequent open letter (10 words). 4 words contain a doubled letter.

Full list 13

apprizingterrazzoshydrazinehydrozoanquartziteapprizershydrazideodorizingquartzosesaprozoicsierozemssporozoansporozoon

About this list

Words
13 (2 common words)
Common example
apprizing
Rare example
sporozoon
Doubled letters
4
Ending in S
3
Most frequent letter
A (10)

Questions

How many 9-letter words matching ___r_z___ are there?

13. 2 of them are common words.

What is a common example?

APPRIZING is among the common words in this set.