4M or 4-M may refer to: *4m, or 4

metre The metre (or meter in US spelling; symbol: m) is the base unit of length in the International System of Units (SI). Since 2019, the metre has been defined as the length of the path travelled by light in vacuum during a time interval of of ...

s * 4-meter band in amateur radio *4M, a model of

Toyota M engine Toyota Motor Corporation's M family of engines were a Longitudinal engine, longitudinally mounted straight-6 engine design. They were used from the 1960s through the 1990s. All M family engines were OHC designs. While the M family was born with ...

*4M, a model of

Mitsubishi 4M4 engine The Mitsubishi 4M4 engine is a range of four-cylinder diesel piston engines from Mitsubishi Motors, first introduced in the second generation of their Montero/Pajero/Shogun SUVs. They superseded the previous '' 4D5'' engine family, main differ ...

*4M, a model of

HP LaserJet 4 The HP LaserJet 4 (abbreviated sometimes to LJ4 or HP4) is a group of monochrome laser printers produced in the early to mid-1990s as part of the LaserJet series by Hewlett-Packard (HP). The 4 series has various models, including the standard Lase ...

*DC-4M, a designation of

Canadair North Star The Canadair North Star is a 1940s Canadian development, for Trans-Canada Air Lines (TCA), of the Douglas DC-4. Instead of radial piston engines used by the Douglas design, Canadair used Rolls-Royce Merlin V12 engines to achieve a higher cruis ...

*A-4M, a model of

Douglas A-4 Skyhawk The Douglas A-4 Skyhawk is a single-seat subsonic carrier-capable light attack aircraft designed and produced by the American aerospace manufacturer Douglas Aircraft Company, and later, McDonnell Douglas. It was originally designated A4D und ...

*Fokker DH-4M, see

Airco DH.4 The Airco DH.4 is a British two-seat biplane day bomber of the First World War. It was designed by Geoffrey de Havilland (hence "DH") for Airco, and was the first British two-seat light day-bomber capable of defending itself. It was desig ...

*VF-4M, see VMA-211 *VB-4M, see VMFA-232 *PB-4M, see Osa (handgun) *Sun-4m, a model of

Sun-4 Sun-4 is a series of Unix workstations and servers produced by Sun Microsystems, first appearing in July 1987, with the launch of the Sun 4/260. The original Sun-4 series were VMEbus-based systems similar to the earlier Sun-3 series, but employi ...

workstation *Mayall 4m telescope, see Nicholas U. Mayall Telescope *Meade 4M Community, an astronomy awareness community sponsored by

Meade Instruments Meade Instruments Corporation (also shortened to Meade) was an American multinational corporation, multinational company (law), company headquartered in Watsonville, California, that manufactured, imported and distributed telescopes, binoculars, ...

LATAM Argentina Aero 2000 S.A., d/b/a LATAM Airlines Argentina, formerly LAN Argentina, was an airline based in Buenos Aires, Argentina, and a member of the LATAM Airlines Group. It was the second-largest airline in Argentina at the time it was disbanded. Hist ...

, a defunct airline based in Buenos Aires, Argentina *J-4M, see Barnett J4B *4M of manufacture industries are

Man A man is an adult male human. Before adulthood, a male child or adolescent is referred to as a boy. Like most other male mammals, a man's genome usually inherits an X chromosome from the mother and a Y chromosome from the f ...

Money Money is any item or verifiable record that is generally accepted as payment for goods and services and repayment of debts, such as taxes, in a particular country or socio-economic context. The primary functions which distinguish money are: m ...

Material A material is a matter, substance or mixture of substances that constitutes an Physical object, object. Materials can be pure or impure, living or non-living matter. Materials can be classified on the basis of their physical property, physical ...

and

Machine A machine is a physical system that uses power to apply forces and control movement to perform an action. The term is commonly applied to artificial devices, such as those employing engines or motors, but also to natural biological macromol ...

. Also see

resource management In organizational studies, resource management is the efficient and effective development of an organization's resources when they are needed. Such resources may include the financial resources, inventory, human skills, production resources, or ...

and

Ishikawa diagram Ishikawa diagrams (also called fishbone diagrams, herringbone diagrams, cause-and-effect diagrams) are causal diagrams created by Kaoru Ishikawa that show the potential causes of a specific event. Common uses of the Ishikawa diagram are produc ...

. *4M Software applications for Engineers, see IDEA Architectural and

FINE MEP FINE MEP (Mechanical Electrical and Plumbing) is a building information modeling (BIM) computer-aided design (CAD) software tool for building services engineering design, built on the '' IntelliCAD'' CAD editor and development platform. It provi ...

*4M,

Manfred Memorial Moon Mission Manfred Memorial Moon Mission (4M) was the first private lunar probe to successfully fly by the Moon. It was led by LuxSpace, a child company of German OHB System, and named in honor of OHB Systems founder, Manfred Fuchs, who died in 2014. It ...

, first commercial Moon mission *4M, the production code for the 1976 ''Doctor Who'' serial ''

The Masque of Mandragora ''The Masque of Mandragora'' is the first serial of the Doctor Who (season 14), 14th season of the British science fiction television series ''Doctor Who'', which was first broadcast in four weekly parts on BBC One, BBC1 from 4 to 25 September 19 ...

See also