noun
the letter M; m
Refers to the Latin letter itself, used in abbreviations, symbols, and as a character.
アルファベットのＭはエムと読む。
The letter M in the alphabet is read as 'emu'.
noun
Abbreviation for metre/meter; usually read as メートル in Japanese.
このケーブルは長さ３Ｍです。
This cable is 3 metres long.
noun
Abbreviation for masochist/masochistic, often used in contexts like SM (sadomasochism).
See also: Ｓ
彼はどちらかというとＭだ。
He is more of an M, if anything.
noun
Used as a symbol or abbreviation for male gender, e.g., on forms or in biological contexts.
性別欄にＭと記入してください。
Please write M in the gender field.
noun
Abbreviation for medium, as in clothing size or other sizing contexts.
このＴシャツのサイズはＭです。
The size of this T-shirt is M.
noun
one thousand (Roman numeral)
Represents the number 1000 in Roman numerals.
ローマ数字のＭは1000を表す。
The Roman numeral M represents 1000.
noun
Abbreviation for magnitude, especially in astronomy or seismology.
その星の等級は５Ｍです。
The magnitude of that star is 5.
noun
Abbreviation for Mach number, used in aerodynamics.
その飛行機はＭ２で飛行している。
The aircraft is flying at Mach 2.
noun
milli-; m
Prefix meaning one-thousandth; the symbol m is more common, but M is sometimes used in specific contexts.
ｍｍはミリメートルの略で、最初のｍがミリを表す。
mm is an abbreviation for millimetre; the first m stands for milli-.
noun
mega-; M
Prefix meaning one million; commonly used in computing and electronics (e.g., MB for megabyte).
このファイルのサイズは５ＭＢです。
The size of this file is 5 MB.
noun
Abbreviation for the color magenta, used in printing (CMYK).
印刷では、Ｍはマゼンタを意味する。
In printing, M stands for magenta.
noun
Slang and archaic term for money, possibly from the first letter of 'money' or from old criminal jargon.
昔の隠語で、Ｍは金のことを指した。
In old slang, M referred to money.