Driving on the Interstate, I saw a sign that said, “MM” and I wondered aloud what that might mean.
- Could there be a Mastermind meeting at the next rest stop?
- Is it a filler term that is often used in speech, such as: um, uh, ah, mm
- Could it possibly refer to M & Ms for sale at the next highway shop?
- In some locations, MM might indicate the ubiquitous mouse
- For Hollywood followers, MM is synonymous with Marilyn Monroe
- Might it refer to the metric measure with which I am most familiar?
There are so many applications for the term MM, including those used in pure mathematics in which MM is an abbreviation for “million”, short for “mille mille”, or 1000 × 1000.
And then there is the ‘mm’ used as a sign of distraction…the humming sound you hear when you nod your head in agreement, meaning “Yes”, “I agree” or “I hear you”.
We live in an age of instant communication, via texting. Texting has unique meanings for MM, such as:
Merry meet – Make me – Missing my
https://www.allacronyms.com/_internet_slang/MM/text_messaging
When I decided to identify other ways in which MM might be used, I discovered an extensive list of acronyms:
Acronym Definition
MM Million
mm Millimeter
MM 2-digit Month (as in MM/DD/YYYY)
MM Multimedia
MM Materials Management
MM Memory Module (computing)
MM Money Market
MM Master of Music
MM Mass Media
MM Marketing Manager
MM Media Manager
MM Meeting Minutes
MM Marilyn Monroe
MM Mile Marker
MM Mickey Mouse
MM Memorandum
MM Malignant Melanoma (malignant skin lesion)
MM Multi-Meter (Multimeter)
MM MusicMatch (computer music application)
MM Middle Man
MM Mamma Mia
MM Mastermind (archetype in the game City of Villains)
MM March Madness (college basketball)
MM Mighty Mouse
MM Mucous Membrane
MM Minnie Mouse
MM Millimolar (SI measure)
MM Married Men
MM Mickey Mantle
MM Master of Management (degree)
MM Military Mission
MM Money Makers
MM Mid-Month
MM Mission Management
MM Mapping Mode (windows programming)
MM Mobile Management
MM Mobility Manager
MM Money Match
MM Money Mart
MM Minutes/Month
MM Mega-Memory
MM Mean Mom
MM Mensa Member
MM Military Message
MM Mineral Map
MM Mission Minded
MM Momentum Management
MM Micro Mole
MM Master’s Degree in Management
MM Master of Ministry
MM Materiel Manager
MM Millions or Thousands
MM Main Memory
MM Magic Missile (Dungons & Dragons)
MM Major Mode (Space Shuttle)
MM Mad Max
MM Maintenance Measurement
MM Molecular Medicine
MM Mad Magazine
Adapted from http://acronyms.thefreedictionary.com/MM
Wow…what an incredible number of possibilities! So, what was that MM by the side of the road? It stood for Mile Marker. 
I’ve lived in 7 States, and I’ve never before seen a sign that said only “MM” and nothing more. Mile markers on interstate highways help you determine which direction you’re going. On most interstates, mile marker numbers begin at the south state line on north-south routes and increase as you travel north. On east-west routes, the numbers begin on the western state border and increase as you travel east. http://wonderopolis.org/wonder/why-do-highways-have-mile-markers.
With a GPS, who needs a mile marker?
I’d rather see Mickey or indulge in some M & Ms. How about you?
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