NM
Abbreviation with 11 meanings
| Stands for | New Mexico |
|---|---|
| Meanings | 11 |
| Categories | Geography & Places, Units & Measurements, Texting & Internet Slang, Medical |
| Also written | /nm, Nm, nm |
NM has 11 meanings. The most common are New Mexico (US state) and Nanometer (metric and SI unit); it can also stand for Nautical mile, Newton-meter, Never mind, Not much and Nuclear medicine, plus 4 more listed below.
Meanings of NM at a glance
| # | NM stands for | Context |
|---|---|---|
| 1 | New Mexico | Geography & Places › US State |
| 2 | Nanometer | Units & Measurements › Metric and SI Unit |
| 3 | Nautical mile | Units & Measurements › US Customary and Imperial Unit |
| 4 | Newton-meter | Units & Measurements › Engineering Unit |
| 5 | Never mind | Texting & Internet Slang › Texting and Chat |
| 6 | Not much | Texting & Internet Slang › Texting and Chat |
| 7 | Nuclear medicine | Medical › Medical Specialty |
| 8 | Nurse manager | Medical › Hospital |
| 9 | National Monument | Geography & Places › Geographic Feature |
| 10 | Near mint | Texting & Internet Slang › Fandom and Fan Fiction |
| 11 | Not mad (tone indicator) | Texting & Internet Slang › Social Media |
1. New Mexico
Geography & Places · US State Abbreviations
Admitted on January 6, 1912, as the 47th state, the Land of Enchantment has the oldest state capital, Santa Fe, founded around 1610, and the highest Hispanic share of population of any state. Albuquerque is the largest city.
Example: Some online stores still list Santa Fe, NM under international shipping by mistake.
AP uses N.M.; the Government Publishing Office and older references use N. Mex. NM was introduced in 1963. Confusion with Mexico on forms is so common that New Mexico Magazine has long run a column called One of Our 50 Is Missing. NM can also mean nautical mile, though nmi is preferred.
2. Nanometer (nm)
Units & Measurements · Metric and SI Unit Abbreviations
One billionth of a meter, the scale of molecules, light wavelengths and transistor features. Visible light runs from about 380 nm (violet) to 750 nm (red), and germicidal UV-C lamps emit at about 254 nm.
Example: Blue LEDs in phone screens typically peak at around 450 nm.
Chipmakers' process names such as "3 nm" no longer correspond to an actual gate length; they are marketing labels for a technology generation. Older spectroscopy used the angstrom (0.1 nm) and the millimicron, equal to 1 nm. Capitalized NM usually means nautical mile in aviation and marine use, and Nm is the newton-meter of torque.
3. Nautical mile
Units & Measurements · US Customary and Imperial Unit Abbreviations
Navigation distance unit of exactly 1,852 meters, about 1.151 statute miles, roughly equal to one minute of latitude. Aviation and shipping use it worldwide, and one nautical mile per hour is a knot.
Example: The aircraft is 40 NM southwest of the airport, descending through 8,000 feet.
The international nautical mile was set at 1,852 m in 1929; the US adopted it in 1954 and Britain in 1970. Other symbols include nmi and, in hydrography, M. Because it maps to degrees of latitude, navigators can measure distances on a chart using the latitude scale on the side.
4. Newton-meter (Nm)
Units & Measurements · Engineering Unit Abbreviations
Torque in SI units: the twisting effect of one newton applied one meter from an axis. Engine torque, bolt-tightening specs and electric motor ratings are given in Nm outside the US; 100 Nm is about 74 lb-ft.
Example: Tighten the wheel nuts to 120 Nm in a star pattern.
Properly written N·m, which avoids confusion with nm (nanometer); the joule has the same dimensions, but by convention torque is given in N·m and energy in joules. Bicycle components use small settings of about 4 to 6 Nm, set with a torque wrench. Electric motors deliver maximum torque from zero rpm.
5. Never mind
Texting & Internet Slang · Texting and Chat Abbreviations
Retracts a question or comment, as in "where are my keys? nm, found them." Common in texts and chats when the writer solves a problem before anyone answers.
Example: Can you send the file? Nm, I found it in my inbox.
Equivalent to NVM, which is more common and less ambiguous. If a message could also be read as a reply to "what's up?", use "nvm" to avoid confusion with "not much."
6. Not much
Texting & Internet Slang · Texting and Chat Abbreviations
Typical reply to "what's up?" or "wyd?", meaning the writer is not doing anything special. Usually followed by a return question such as "u?" or "hbu?"
Example: Nm, just watching TV and eating cereal, u?
Shares letters with "never mind," so context decides: a reply to a greeting means "not much," while a follow-up to one's own question means "never mind." In US addresses NM is the postal code for New Mexico.
7. Nuclear medicine
Medical · Medical Specialty Abbreviations
Specialty that uses small amounts of radioactive tracers to diagnose and treat disease, including bone scans, thyroid uptake scans, PET and myocardial perfusion imaging, plus radioactive iodine and radioligand therapy for some cancers. The American Board of Nuclear Medicine was established in 1971.
Example: NM thyroid uptake 62% at 24 hours, consistent with Graves disease.
Physicians enter the field through nuclear medicine residency or through diagnostic radiology with nuclear training. Newer "theranostic" treatments pair a diagnostic scan with a therapeutic radioactive drug aimed at the same target, such as PSMA in prostate cancer. In hospital administration NM can mean nurse manager.
8. Nurse manager
Medical · Hospital Abbreviations
Registered nurse with 24-hour accountability for a hospital unit's operations, including staffing, budgets, quality, staff development and patient experience. The role combines clinical leadership with management of a budget and often dozens of employees.
Example: NM reviewing fall huddle notes and adjusting staffing for weekend.
Also called unit manager or clinical manager. Nurse managers are a major influence on staff retention and unit safety culture. They typically supervise charge nurses and report to a director or the chief nursing officer. In measurement NM also means nanometer (nm) or nautical mile.
9. National Monument
Geography & Places · Geographic Feature Abbreviations
Protected area designated by the president under the Antiquities Act of 1906 or by Congress, labeled NM on maps; Devils Tower in Wyoming was the first, proclaimed in 1906.
Example: The road into Bandelier NM closes when the parking lot fills.
Monuments are managed by several agencies, including the National Park Service and the Bureau of Land Management. NM is also New Mexico's postal code, so a label like Gila Cliff Dwellings NM, NM uses both meanings.
10. Near mint
Texting & Internet Slang · Fandom and Fan Fiction Abbreviations
Comic book and collectibles grading term meaning nearly perfect condition, with only tiny flaws visible on close inspection. Used in listings, price guides and grading certificates.
Example: Selling a NM first print of the issue, graded 9.4 by CGC.
On the 10-point scale used by grading company CGC, 9.4 is Near Mint and 9.8 is Near Mint/Mint, and a single grade step can change a key issue's value dramatically. Trading-card collectors use similar terms. In texting, nm means "not much" or "never mind."
11. Not mad (tone indicator) (/nm)
Texting & Internet Slang · Social Media Abbreviations
Tone tag reassuring the reader that the writer is not angry, used to soften questions or comments that could sound accusatory in text.
Example: Why didn't you text me back yesterday? /nm, just checking in.
Text often strips out the friendly tone of a spoken question, so /nm prevents misunderstandings. Common in Gen Z and neurodivergent online spaces. Unrelated to the chat abbreviation "nm," meaning "not much" or "never mind."
Related abbreviations
More US state abbreviations
- ND – North Dakota
- NE – Nebraska
- NH – New Hampshire
- NJ – New Jersey
- NV – Nevada
- NY – New York
- OH – Ohio
- OK – Oklahoma
See all 51 US state abbreviations →
More metric and SI unit abbreviations
- m² – Square meter
- m³ – Cubic meter
- N – Newton
- ng – Nanogram
- P – Peta- (quadrillion)
- pc – Parsec
- q – Quecto- (10^-30)
- R – Ronna- (10^27)
See all 64 metric and SI unit abbreviations →
This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.