| Idiom | Meaning | Example | 
| makes no difference | 
will not affect or  change something
 | 
The color of the car makes no difference to me. I don't care.
 | 
| makings of | 
(See the makings of)
 | 
 | 
| malarkey | 
(See a bunch of malarkey)
 | 
 | 
| man of few words | 
(See a man of few words)
 | 
 | 
| man of the cloth | 
(See a man of the cloth)
 | 
 | 
| mark a watershed | 
begins a change, starts a shift or movement, the turning point
 | 
The invasion of Palestinian neighborhoods marked a watershed.
That's when world opinion shifted.
 | 
| mark my words | 
listen carefully, pay attention
 | 
A California team will win the Super Bowl. Mark my words.
 | 
| marked man | 
(See a marked man)
 | 
 | 
| match wits | 
compete with someone's wit or humor
 | 
Don't try to match wits with Pat. He has a reply for everything.
 | 
| matter of life and death | 
(See it's a matter of life and death)
 | 
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