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  • Mx
    Mx
    maxwell; maxwells.
  • MX
    MX
    missile experimental: a ten-warhead U.S. intercontinental ballistic missile.
  • Mx.
    Mx.
    a title of respect prefixed to a person's surname: unlike Mr., Mrs., or Ms., it does not indicate gender and may be used by a person with any or no specific gender identity.
  • mx
    mx
    abbreviation
    Mexico
Synonyms

Mx

1 American  
Electricity.
  1. maxwell; maxwells.


MX 2 American  
  1. missile experimental: a ten-warhead U.S. intercontinental ballistic missile.

  2. motocross.


Mx. 3 American  
[miks, muhks] / mɪks, mʌks /
  1. a title of respect prefixed to a person's surname: unlike Mr., Mrs., or Ms., it does not indicate gender and may be used by a person with any or no specific gender identity.


MX 1 British  

abbreviation

  1. missile-experimental: an intercontinental ballistic missile with up to ten nuclear warheads

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Mx 2 British  

symbol

  1. maxwell

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

mx 3 British  

abbreviation

  1. Mexico

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of MX2

First recorded in 1970–75; by abbreviation

Origin of Mx.3

First recorded in 1975–80; M (as in Mr./Mrs./Ms. ) + x (symbol for an unknown quantity, person, or thing)

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

At an earlier hearing, the court heard how Castellucci, a cyber security expert from California, uses the title "Mx" and refers to themselves using they/them pronouns.

From BBC Feb. 25, 2025

"They both prefer offshore deeper waters, so it's quite unusual to spot them close to land," said Mx Cowen who uses "they" and "them" as personal pronouns.

From BBC Jan. 9, 2025

Now aged 26, Mx Sharman has donated three times and shares their egg donation journey on TikTok.

From BBC Aug. 7, 2024

The authorities in the state of Aguascalientes, where Mx.

From New York Times Nov. 14, 2023

At, feeler; Mn, mandible; Mx, maxilla; Lm, labium, spinneret projecting beyond it.

From The Life-Story of Insects by George H. (George Herbert) Carpenter

In December, he moved to storied Liga MX club Chivas, his childhood team.

From Los Angeles Times Jun. 30, 2026

Now, Polymarket has secured an exclusive partnership with Liga MX, North America’s most popular soccer league.

From Barron's Jun. 11, 2026

Genius will also provide Polymarket the data it needs to settle Liga MX markets for its U.S. platform, the company says.

From Barron's Jun. 11, 2026

Steve Wilson: Mexico's young sensation is the youngest goalscorer in Liga MX history, getting off the mark for Tijuana in August 2024 when he was still 15.

From BBC Jun. 9, 2026

MIRVs, which encompassed the land-based MX missile program, were the ultimate product of Livermore’s long quest for a high-yield, low-weight nuclear device.

From "Big Science" by Michael Hiltzik

The x in “Latinx” serves a similar function as it does in Mx., the gender-neutral version of the honorifics Mr. or Ms.; it creates an alternative to “Latino” and “Latina.”

From Seattle Times Mar. 1, 2023

“Anderson Aldrich is nonbinary. They use they/them pronouns, and for the purposes of all formal fillings, will be addressed as Mx. Aldrich,” the attorneys said in a footnote on the filing.

From Washington Times Nov. 23, 2022

"Anderson Aldrich is non-binary. They use they/them pronouns, and for the purposes of all formal filings, will be addressed as Mx. Aldrich," a footnote in a court filing reads by their defense team.

From Salon Nov. 23, 2022

They will also have the option of picking "Mx." as a title.

From Fox News Feb. 15, 2019

“Maybe we should let Mx. Desi know that there’s a flying fire type outside their door?”

From "A Bird Will Soar" by Alison Green Myers

Compare these values to the equation y = mx + b .

From Textbooks Apr. 22, 2020

Algebraically, a linear equation typically takes the form y = mx + b, where m and b are constants, x is the independent variable, and y is the dependent variable.

From Textbooks Mar. 27, 2020

The equation for a straight line is y = mx + b .

From Textbooks Aug. 12, 2015

Algebraically, a linear equation typically takes the form y = mx + b, where m and b are constants, x is the independent variable, y is the dependent variable.

From Textbooks Sep. 19, 2013

Equations which are homogeneous and of the same degree.—These equations can be solved by substituting y = mx.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7 "Equation" to "Ethics" by Various

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