RhymeZone: mil. definitions

Definitions of mil.:

noun: military
noun: Alternative spelling of mil [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.]

(Definitions from Wiktionary)