noun
alliance; oath of union
Obsolete standalone noun for a sworn alliance or pact. In modern Japanese, it survives mainly in the fixed expression 盟を結ぶ (to form an alliance).
See also: 盟を結ぶ
古い文献では、二国が盟を結んだと記されている。
In old documents, it is recorded that the two countries formed an alliance.
noun, noun, used as a suffix
league; aimag; Mongolian administrative division
Used as a suffix in the names of administrative subdivisions in Mongolia and Inner Mongolia, such as ~盟. Also appears as a standalone noun for 'league' in this context.
内モンゴル自治区にはいくつかの盟がある。
There are several leagues (aimags) in the Inner Mongolia Autonomous Region.
シリンゴル盟は草原で有名だ。
Xilingol League is famous for its grasslands.