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盟友 (めいゆう, meiyuu) Japanese meaning: sworn friend | Kotomora
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He started a new business with his longtime sworn friend.
During the Warring States period, the two warlords were steadfast allies.
Usage patterns 〈 人ひと 〉 の 盟めい 友ゆう someone's sworn ally/close friend
He mourned the death of the politician who had long been his close ally.
盟めい 友ゆう となる to become sworn allies
The two shared hardships together and eventually became sworn allies.
盟めい 友ゆう 関かん 係けい を 結むす ぶ to form an alliance/bond as sworn allies
The leaders of the two countries formed a sworn alliance.
Related words 親友 is an everyday close friend, while 盟友 is a formal term for an ally bound by a shared cause or pledge.
同志 stresses a shared ideology or cause among comrades, whereas 盟友 emphasizes a solemn personal bond of loyalty.
仲間 is a general, neutral word for companions or colleagues, while 盟友 is much stronger and more solemn, implying sworn loyalty.
Don't confuse with 盟約 is the pact or oath itself, while 盟友 is the person who is your sworn ally under such a bond.
盟友 means a close ally or comrade (an equal partner), while 盟主 means the leader who heads the alliance.
Etymology From 盟 (めい, 'oath, alliance') and 友 (ゆう, 'friend'). The combination directly yields 'sworn friend' or 'ally bound by pledge'.
