同盟国(どうめいこく)

どうめいこく
noun
allied nation; ally country
1. allied nation; ally; member state of an alliance
A country that is part of a formal alliance, especially a military or political one.
同盟国(どうめいこく)と協力(きょうりょく)する。
To cooperate with allied nations.
日本(にほん)はアメリカの重要(じゅうよう)な同盟国(どうめいこく)である。
Japan is an important ally of the United States.
首脳会談(しゅのうかいだん)では、同盟国(どうめいこく)との連携(れんけい)強化(きょうか)が主要(しゅよう)な議題(ぎだい)となった。
At the summit, strengthening cooperation with allied nations was a major agenda item.

A compound of 同盟(どうめい) (alliance) and 国(こく) (country). Frequently appears in news coverage of international relations, diplomacy, and security policy.

COMMON COLLOCATIONS:

  • 同盟国(どうめいこく)との関係(かんけい): relations with allied nations
  • 同盟国(どうめいこく)を支援(しえん)する: to support an ally
  • 主要(しゅよう)同盟国(どうめいこく): major ally
  • 同盟国(どうめいこく)に対(たい)する義務(ぎむ): obligations to allies

SIMILAR WORDS:

  • 友好国(ゆうこうこく): friendly nation — countries with good relations but not necessarily a formal alliance
  • 同盟(どうめい): alliance — the alliance itself, not the member country
  • 連合国(れんごうこく): allied powers — historically refers to the Allied Powers in the World Wars
  • 加盟国(かめいこく): member state — a country belonging to an organization like the UN
general
Added 2026.4.5 5:20 · Revised 2026.4.10 17:28
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