1. A covenant made by nations, groups, or individuals for promoting common interests or ensuring mutual protection.
2. An alliance or association of nations, groups, or individuals formed by such a covenant.
3. A unit of distance, usu. measuring about three miles (chiefly, nautical). [Cases: Weights and Measures
3. C.J.S. Weights and Measures § 3.]
marine league. A geographical measure of distance equal to one-twentieth part of a degree of latitude, or three nautical miles. [Cases: Weights and Measures
3. C.J.S. Weights and Measures § 3.]