Editing M (section)

==Other uses==
{{main article|M (disambiguation)}}
[[File:Miehikkala.vaakuna.svg|thumb|upright=0.7|Styled letter M in the coat of arms of [[Miehikkälä]]]]
* The [[Roman numeral]] M represents the number [[1000 (number)|1000]], though it was not used in [[Ancient Rome|Roman times]]. There is, however, scant evidence that the letter was later introduced in the early centuries A.D. by the Romans.<ref>{{cite book | url=https://archive.org/details/illustratedintro0000gord | url-access=registration | quote=roman numerals. | title=Illustrated Introduction to Latin Epigraphy | publisher=[[University of California Press]] | date=1983 | access-date=3 October 2015 | author=Gordon, Arthur E. | pages=[https://archive.org/details/illustratedintro0000gord/page/45 45]| isbn=9780520038981 }}</ref>
* [[Unit prefix]] M (mega), meaning one million times, and m (milli) meaning one-thousandth.<ref name="freedict">{{cite web |url=https://acronyms.thefreedictionary.com/m |title=What does M stand for? |author=<!--Not stated--> |date= |website=The Free Dictionary |publisher= |access-date=9 February 2021 |quote= |archive-date=25 November 2020 |archive-url=https://web.archive.org/web/20201125054852/https://acronyms.thefreedictionary.com/M |url-status=live }}</ref><ref name="collins">{{cite web |url=https://www.collinsdictionary.com/dictionary/english/m_1 |title=M definition and meaning |author=<!--Not stated--> |date= |website=Collins English Dictionary |publisher= |access-date=9 February 2021 |quote= |archive-date=27 February 2021 |archive-url=https://web.archive.org/web/20210227212738/https://www.collinsdictionary.com/dictionary/english/m_1 |url-status=live }}</ref>
* m is the standard abbreviation for [[metre]] (or meter) in the [[International System of Units]] (SI).<ref name="freedict"/> However, m is also used as an abbreviation for [[mile]].<ref name="collins"/>
* M is used as the unit abbreviation for [[molar concentration|molarity]].<ref name="freedict" />
* With money amounts, m or M is ambiguous.  In the finance industry,<ref>{{cite web |title=MM (Millions) |url=https://corporatefinanceinstitute.com/resources/fixed-income/mm-millions/ |website=corporatefinanceinstitute.com |publisher=corporate finance institute. |access-date=5 August 2024 |archive-date=August 5, 2024 |archive-url=https://web.archive.org/web/20240805214551/https://corporatefinanceinstitute.com/resources/fixed-income/mm-millions/ |url-status=live }}</ref> m or M means 1,000.  In this context, five million dollars is written $5mm or $5MM.  Outside of finance, some people use M like the metric system "[[mega-]]" to mean one million and write $5M.<ref name="freedict"/><ref name="collins"/>
* M often represents male or masculine, especially in conjunction with F for female or feminine.<ref name="freedict"/><ref name="collins"/>
* In typography, an [[em dash]] is a punctuation symbol whose width is similar to that of a capital letter M.
* M is used as a logo by many [[rapid transit]] systems, standing for "Metro" (or equivalents in other languages.)