Translation guide
In Japanese, the concept of 'alliance' is expressed through several words that differ by formality, context, and type of relationship. The most common and versatile term is 同盟 (dōmei), used for formal pacts between nations, organizations, or groups. For looser cooperative relationships, 連携 (renkei) is common in business and technology. Other terms like 提携 (teikei) and 連合 (rengō) have specific nuances.
Express a formal, often official, agreement to cooperate for a common purpose, especially in political, military, or organizational contexts.
The standard term for a formal alliance, especially military or political. It implies a binding agreement and shared objectives. Commonly used in historical and international contexts.
Japan and the United States have formed a military alliance.
The Triple Alliance was one of the causes of World War I.
Refers to a union, coalition, or federation. Often used for alliances of multiple parties or groups, such as labor unions or political coalitions. Less formal than 同盟 in some contexts.
The opposition parties formed a coalition for the election.
Describe a partnership or collaboration between companies, organizations, or entities for mutual benefit, often in commercial or technical fields.
Commonly used for business partnerships, tie-ups, or collaborations. Implies a cooperative agreement for mutual benefit, such as joint ventures or strategic alliances.
The company formed a business alliance with an overseas firm.
Emphasizes coordination and working together, often in operational or technical contexts. Less formal than 提携 and can be used for inter-departmental or inter-organizational cooperation.
Refer to a more informal or temporary alignment of interests, often without a formal agreement.
Refer to an alliance formed through marriage, often between royal or noble families.
Refers to a marriage alliance or adoption for the purpose of forming a family tie. Used in historical or literary contexts.
The alliance was strengthened through a marriage between the two families.
同盟 (dōmei) is the most direct equivalent for a formal, often military or political, alliance. 連合 (rengō) implies a union or federation of multiple parties, like a coalition. 提携 (teikei) is specifically for business or technical partnerships. Use 連携 (renkei) for operational cooperation.
In casual conversation, directly translating 'alliance' as 同盟 may sound overly formal or military. Instead, use phrases like 協力関係 (cooperative relationship) or simply describe the action (e.g., 一緒にやる, 'do together').
両社は技術開発で連携している。
The two companies are cooperating in technology development.
Literally 'cooperative relationship'. A straightforward way to express an alliance in the sense of working together. Can be used in various contexts.
We have an alliance (cooperative relationship) with them.