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noun. , plural M's or Ms, m's or ms. the thirteenth letter of the English alphabet, a consonant. any spoken sound represented by the letter M or m, as in my, summer, or him. something having the shape of an M. a written or printed representation of the letter M or m.
Browse definitions and meanings of words that begin with the letter "M" at Dictionary.com.
M, m meaning: 1. the 13th letter of the English alphabet 2. the sign used in the Roman system for the number…. Learn more.
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 representing waves of water. The sound represented by the letter has been from the beginning the labial nasal.
m is the standard abbreviation for metre (or meter) in the International System of Units (SI). However, m is also used as an abbreviation for mile. M is used as the unit abbreviation for molarity. With money amounts, m or M can mean one million: For example, $5m is five million dollars.
Britannica Dictionary definition of M. 1. : the 13th letter of the English alphabet. [count] a word that starts with an m. [noncount] a word that starts with m. 2. [count] : the Roman numeral that means 1,000.
Get synonyms and antonyms for 3,564 words that start with the letter M.
