If one is talking about titles, the usual names of three plays, Macbeth, Much Ado about Nothing and Measure for Measure, start with "m". However, the full name of Macbeth is "The Tragedy of Macbeth" which begins with a "T". If one disregards the article, Merchant of Venice, Merry Wives of Windsor and Midsummer Night's Dream also start with M, although they are usually called THE Merchant of Venice, THE Merry Wives of Windsor and A Midsummer Night's Dream.
A more interesting way of reading this question is whether the first word of dialogue of any plays begin with the letter "m" The answer to this is that although the prologue of Henry V begins "O for a muse of fire", the first line of dialogue begins "My Lord", the only play in which the first word of dialogue begins with "m".
M!
The letter M !The letter "m" (month, moment, a thousand years)the letter "m"
The letter "M"!Once in MinuteTwice in MomentBut not in thousand years
u n p
the letter M. man that riddle is so old xP
Two presidents: James Madison and James Monroe.
M!
yes they happen every 12 hours
The letter "m" :DOnce in a minute, twice in a moment, and not once in a thousand years.
Those twins are the letter "M." When written together on top of a man's nose, they resemble a bridge, as the letter "M" has two peaks that can be seen as the supports of a bridge. This riddle plays on the visual similarity between the letter "M" and a bridge.
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern MI--M-M. That is, seven letter words with 1st letter M and 2nd letter I and 5th letter M and 7th letter M. In alphabetical order, they are: minimum
m
The letter "m".MinuteMomentThousand Years
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern M-MZ---M. That is, eight letter words with 1st letter M and 3rd letter M and 4th letter Z and 8th letter M. In alphabetical order, they are: mamzerim momzerim
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern M-MM--I. That is, seven letter words with 1st letter M and 3rd letter M and 4th letter M and 7th letter I. In alphabetical order, they are: mammati
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -MM----M-. That is, nine letter words with 2nd letter M and 3rd letter M and 8th letter M. In alphabetical order, they are: ammoniums
Yes, "m" (or M) is the 13th letter of the English alphabet.