4-Letter Words With R and Z

There are 13 4-letter words that use both R and Z. 7 are common words, such as CZAR and FRIZ. A rarer one is ZORI. In this set, A is the most frequent open letter (6 words). 1 words contain a doubled letter.

Full list 13

czarfrizorzorazerazztzarzerozarfizarprezritzzerkzori

About this list

Words
13 (7 common words)
Common example
czar
Rare example
zori
Doubled letters
1
Ending in S
0
Most frequent letter
A (6)

Questions

How many 4-letter words with r and z are there?

13. 7 of them are common words.

What is a common example?

CZAR is among the common words in this set.