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 unit of length equal to one-thousandth of an inch (25.4 µm).
A thousand, especially a thousand of some currency (dollars, pounds sterling, etc.).
To use the word thou.
To address (a person) using the pronoun thou, especially as an expression of contempt or familiarity.