Imperial

Imperial may mean:
1. The things associated with a country led by a powerful leader (an empire) or with that leader (Emperor) as a person.
2. A system of weights and measures (Imperial units) formerly used by the old British Empire, and in places it controlled or affected, including inches, feet, ounces, pounds, and other measurements which are frequently used by English-speaking people, as opposed the International System based on meters and liters.