7-Letter Words Matching M____F_

There are 13 7-letter words that match M____F_. 10 are common words, such as MAGNIFY and MASSIFS. A rarer one is MICRIFY. In this set, I is the most frequent open letter (13 words). 5 words contain a doubled letter.

Full list 13

magnifymassifsmastiffmidlifemidriffmidwifemollifymortifymummifymystifymetrifymythifymicrify

About this list

Words
13 (10 common words)
Common example
magnify
Rare example
micrify
Doubled letters
5
Ending in S
1
Most frequent letter
I (13)

Questions

How many 7-letter words matching m____f_ are there?

13. 10 of them are common words.

What is a common example?

MAGNIFY is among the common words in this set.