| 官と民の協力 | cooperation between the private and public sectors |
| 協働 | cooperation |
| 経協 | management association, management conference, management institute |
| 平和協力 | peace collaboration |
| 国際協定 | international agreement, accord |
| 妥協点 | (find) common (meeting) ground |
| 日米構造協議 | Structural Impediments Initiative talks, SII |
| スワップ協定 | swap agreement |
| 多国間協議 | multilateral conference, multilateral negotiations |
| アジア太平洋経済協力会議 | Asia-Pacific Economic Cooperation, APEC |
| 相互協力 | bilateral cooperation |
| 太平洋経済協力会議 | Pacific Economic Cooperation Council, PECC |
| 停戦協定 | cease-fire deal |
| ガイアナ協同共和国 | Co-operative Republic of Guyana |
| 協議書 | memorandum of agreement, agreement, memorandum of understanding, MOU, letter of intent, heads of agreement |
| 協会旅費 | travel allowance paid to salaried wrestlers for tournaments held outside Tokyo |
| 自治体国際化協会 | Council of Local Authorities for International Relations, CLAIR |
| 平和協議 | peace conference |
| 一致協力 | combined (concerted) efforts, solidarity, joining forces (with) |
| 鳩首協議 | put heads together and confer, convene and discuss, go into a huddle (over) |
| 協心戮力 | combined (concerted) efforts, solidarity, joining forces (with) |
| 協力一致 | combined (concerted) efforts, solidarity, joining forces (with) |
| 協力態勢 | readiness to cooperate, framework for cooperation |
| 戮力協心 | combined (concerted) efforts, solidarity, joining forces (with) |
| 和衷協同 | harmonious cooperation, close cooperation |
| 自殺協定 | suicide pact |
| 欧州政治協力 | European Political Co-operation, EPC |
| 漁協 | fishery cooperative |
| 国際平和協力 | international peace cooperation |
| 協調関係 | cooperative relationship, partnership |
| 国際協調主義 | principle (or ideology) of international cooperation |
| 協力合意 | agreement to cooperate |
| 産学協同 | industry-university cooperation |
| 産学協同体 | educational-industrial complex |
| 認知的不協和 | cognitive dissonance |
| 非協力 | noncooperation |
| 一般協定 | general agreement |