noun

treaty

treaty, pact, agreement

The two countries signed a peace treaty.

The two countries signed a peace treaty.

The treaty aims to reduce nuclear weapons.

The treaty aims to reduce nuclear weapons.

((between A and B)) a treaty between countries It was a treaty between France and Germany.

((on sth.)) a treaty on a subject They signed a treaty on climate change.

Synonyms: agreement, pact, accord, convention

From Old French 'traité', from Latin 'tractatus' meaning 'a handling, discussion, treaty', related to 'treat'.

A 'treaty' is a formal agreement that sets out how countries will 'treat' each other.

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