7-Letter Words Matching R____M_

There are 20 7-letter words that match R____M_. 10 are common words, such as RACISMS and RADIUMS. A rarer one is RHIZOMA. In this set, E is the most frequent open letter (14 words). 1 words contain a doubled letter.

Full list 20

racismsradiumsragtimeransomsrectumsredeemsreformsrewarmsrhizomerhythmsruntimerandomsreclamerefilmsreframereplumbrestampreteamsretrimsrhizoma

About this list

Words
20 (10 common words)
Common example
racisms
Rare example
rhizoma
Doubled letters
1
Ending in S
12
Most frequent letter
E (14)

Questions

How many 7-letter words matching r____m_ are there?

20. 10 of them are common words.

What is a common example?

RACISMS is among the common words in this set.