4-Letter Words Ending in RR

There are 12 4-letter words that end in RR. 2 are common words, such as BURR and PURR. A rarer one is YIRR. In this set, U is the most frequent open letter (5 words). 12 words contain a doubled letter.

Full list 12

burrpurrbirrparrtorrbrrrcarrcurrdorrdurrmurryirr

About this list

Words
12 (2 common words)
Common example
burr
Rare example
yirr
Doubled letters
12
Ending in S
0
Most frequent letter
U (5)

Questions

How many 4-letter words ending in rr are there?

12. 2 of them are common words.

What is a common example?

BURR is among the common words in this set.