Learn about the Letter M. Learn that M is a consonant in the alphabet. Learn to recognize the upper and lowercase letter M, how to write the letter M and the sound that letter M makes.

M, or m, is the thirteenth letter of the Latin alphabet, used in the modern English alphabet, the alphabets of several western European languages and others worldwide.

History, etymology, and pronunciation of m, the thirteenth letter in the alphabet. It corresponds to the Semitic mem and to the Greek mu. The Semitic form may derive from an earlier sign …

Economics., monetary aggregate: issued periodically by the Federal Reserve Board as various measures of money supply (M-1, M-1A, M-2, etc.). British., motorway (used with a road …

The letter M is the 13th letter of the English alphabet and holds linguistic, cultural, and scientific significance. Its applications span communication, branding, science, and beyond.

-'m is the usual spoken form of 'am', used after 'I' in 'I'm'. Collins COBUILD Advanced Learner’s Dictionary. Copyright © HarperCollins Publishers

Any of the speech sounds that this letter represents, as, in English, the (m) of milk or stratagem.