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adjective

multilateral

/ˌmʌl.tiˈlæt.ər.əl/  ·  say it: mul·ti·LAT·er·ul

involving three or more countries

In Politics & Diplomacy

In more detail

1. (adjective) involving or affecting many countries or groups

2. (adjective) having many sides

Examples

How to use multilateral

Multilateral is commonly used in diplomatic, political, and business contexts to describe arrangements involving three or more parties or nations. It emphasizes inclusiveness and shared decision-making compared to bilateral (two parties) or unilateral (one party) alternatives. The geometric sense (having many sides) is less frequently used in modern English.

Register: formal

Common phrases

Synonyms

multisided · many-sided · plurilateral · multinational · collective

Opposites

bilateral · unilateral

Word family

multilateralism · multilaterally

A common mistake

Learners sometimes confuse multilateral with multinational; while related, multilateral emphasizes the structure of an agreement or organization, while multinational emphasizes the origin or composition of entities involved.

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