A (usually approximate and informal) unit of measurement based upon the radial width of the human finger.
A unit of measurement equal to ¹⁄₁₀₀₀ of an inch (25.4 µm), usually used for thin objects, such as sheets of plastic.
An angular mil, a unit of angular measurement equal to ¹⁄₆₄₀₀ of a complete circle. At 1000 metres one mil subtends about one metre (0.98 m). Also ¹⁄₆₀₀₀ and ¹⁄₆₃₀₀ are used in other countries.
a former subdivision (¹⁄₁₀₀₀) of the Maltese lira