MM.
from
The Collaborative International Dictionary of English v.0.48
Monsieur \Mon*sieur"\, n.; pl. {Messieurs}. [F., fr. mon my +
Sieur, abbrev. of seigneur lord. See {Monseigneur}.]
1. The common title of civility in France in speaking to, or
of, a man; Mr. or Sir. [Represented by the abbreviation M.
or Mons. in the singular, and by {MM.} or {Messrs.} in the
plural.]
[1913 Webster]
2. The oldest brother of the king of France.
[1913 Webster]
3. A Frenchman. [Contemptuous] --Shak.
[1913 Webster]
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