mm

¹ American  

1. millimeter; millimeters.

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mM ² American  

1. millimole; millimoles.

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mm. ³ American  

abbreviation

1. thousands.

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mm. ⁴ American  

abbreviation

1. Music. measures.

2. millimeter; millimeters.

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MM. ⁵ American  

abbreviation

1. Messieurs.

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M.M. ⁶ American  

abbreviation

1. Master Mason.

2. Master Mechanic.

3. Master of Music.

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mm ¹ British  

symbol

1. millimetre

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abbreviation

1. mutatis mutandis

MM ² British  

abbreviation

1. Military Medal

2. the French equivalent of Messrs

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mm ³ British  

abbreviation

1. Myanmar

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mm Scientific  

1. Abbreviation of millimeter

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Etymology

Origin of mm.

From the Latin word millia

Example Sentences

In a Sunday report by state media, North Korea said the drill featured a dozen 600 mm, “ultra-precision” rocket launchers and two artillery companies.

From The Wall Street Journal • Mar. 15, 2026

Using this approach, the researchers determined that global sea level rose by about 90 mm between 1993 and 2022.

From Science Daily • Feb. 24, 2026

"By January 29, the Moscow State University Meteorological Observatory had recorded almost 92 mm of precipitation, which is already the highest value in the last 203 years," it added.

From Barron's • Jan. 29, 2026

Totals since Wednesday evening may exceed 150 mm in a few places.

From BBC • Jan. 22, 2026

Ellsberg went back to his cot and fell asleep, and it was not until the next morning that he noticed an unexploded .60 mm shell sticking into the floor a few feet from his bed.

From "Most Dangerous: Daniel Ellsberg and the Secret History of the Vietnam War" by Steve Sheinkin