A treaty or confederacy. The Jews were forbidden to enter into an alliance of any kind (1) with the Canaanites (Exodus 23:32, 33; 34:12-16); (2) with the Amalekites (Exodus 17:8, 14; Deuteronomy 25:17-19); (3) with the Moabites and Ammonites (Deuteronomy 2:9, 19). Treaties were permitted to be entered into with all other nations. Thus David maintained friendly intercourse with the kings of Tyre and Hamath, and Solomon with the kings of Tyre and Egypt.

Noah Webster's New International Dictionary of the English Language

1. (n.) A measure of length or distance, varying in different countries from about 2.4 to 4.6 English statute miles of 5.280 feet each, and used (as a land measure) chiefly on the continent of Europe, and in the Spanish parts of America. The marine league of England and the United States is equal to three marine, or geographical, miles of 6080 feet each.

2. (n.) A stone erected near a public road to mark the distance of a league.

3. (n.) An alliance or combination of two or more nations, parties, or persons, for the accomplishment of a purpose which requires a continued course of action, as for mutual defense, or for furtherance of commercial, religious, or political interests, etc.

4. (v. i.) To unite in a league or confederacy; to combine for mutual support; to confederate.

5. (v. t.) To join in a league; to cause to combine for a joint purpose; to combine; to unite; as, common interests will league heterogeneous elements.