| M | machines or machine systems collectively |
|---|---|
| M | a system of means and activities whereby a social institution functions |
| M | a craftsman skilled in operating machine tools |
| M | a vise with two parallel iron jaws and a wide opening below |
| M | exaggerated masculinity |
| M | speedometer for measuring the speed of an aircraft relative to the speed of sound |
| M | used of men |
| M | a man who is virile and sexually active |
| M | (British) a waterproof raincoat made of rubberized fabric |
| M | a lightweight waterproof (usually rubberized) fabric |
| M | (British) a waterproof raincoat made of rubberized fabric |
| M | United States filmmaker (born in Canada) noted for slapstick movies (1880-1960) |