5-Letter Words Matching R_O__

There are 16 5-letter words that match R_O__. 9 are common words, such as REORG and RIOTS. A rarer one is RYOTS. In this set, O is the most frequent open letter (10 words). 10 words contain a doubled letter.

Full list 16

reorgriotsroodsroofsrooksroomsroomyroostrootsrhombrookyroosereoilriojarootyryots

About this list

Words
16 (9 common words)
Common example
reorg
Rare example
ryots
Doubled letters
10
Ending in S
7
Most frequent letter
O (10)

Questions

How many 5-letter words matching r_o__ are there?

16. 9 of them are common words.

What is a common example?

REORG is among the common words in this set.