9-Letter Words Matching T_____Z__

There are 12 9-letter words that match T_____Z__. 3 are common words, such as TERRAZZOS and THEORIZED. A rarer one is TZARITZAS. In this set, I is the most frequent open letter (11 words). 1 words contain a doubled letter.

Full list 12

terrazzostheorizedtheorizestheorizertotalizertetanizedtetanizestotalizedtotalizestristezastsaritzastzaritzas

About this list

Words
12 (3 common words)
Common example
terrazzos
Rare example
tzaritzas
Doubled letters
1
Ending in S
7
Most frequent letter
I (11)

Questions

How many 9-letter words matching t_____z__ are there?

12. 3 of them are common words.

What is a common example?

TERRAZZOS is among the common words in this set.