Treaty
noun /ˈtriː.ti/ — A formal agreement between sovereign states.
Definition
A formally concluded and ratified agreement between sovereign states. Treaties govern peace, alliances, trade, territorial boundaries, and rights. They are both ends and beginnings — the formal closing of one era and the legal framework of the next.
Beyond the definition
A treaty is the attempt to make the past agree with the future — to turn the results of power into the terms of law. The gap between those two things is where history lives.
Origin & history
From Old French 'traité' (agreement); from Latin 'tractatus' (treatment, handling). Treaties as formal instruments of international law have existed since antiquity.
Example sentences
Illustrative sentences for learning, not verified community posts or sourced quotations.
The Treaty of Westphalia (1648) established the concept of national sovereignty that still organizes international relations.
Indigenous treaties across North America were often honored in the breach — the language of agreement disguising the reality of displacement.
A marriage is a kind of treaty: two parties agreeing on terms that neither fully understands yet.
How to use it
This entry uses a noun. Follow the examples for articles and singular or plural forms; not every noun takes “a” or “an.”
Choose “Treaty” when the meaning fits your context: A formally concluded and ratified agreement between sovereign states. Treaties govern peace, alliances, trade, territorial boundaries, and rights. They are both ends and beginnings — the formal closing of one era and the legal framework of the next.
Synonyms
agreement, accord, pact, convention
Antonyms
conflict, war, hostilities
Related words
Treaty vs alliance
A treaty is a formal legal contract between states. An alliance is a cooperative relationship between nations that may or may not be solidified by a treaty.
Word in the Wild
See how this word appears in life, language and stories.
Illustrative sentences and imagined stories for learning — not verified sightings, interviews, or sourced quotations.
Fictional scene
Adult Holding Document In Courtroom
An adult stands in a vast, silent, wood-paneled courtroom, holding a single document, emphasizing the weight and formality of the proceedings.
A treaty is a ratified agreement between states that defines legal frameworks and eras. The formality of holding the document in the courtroom emphasizes its function as both the closing of one era and the beginning of another.
Image credit: Wordspun · AI-generated conceptual illustration
Questions about this word
What does "Treaty" mean?
Treaty is noun meaning: A formal agreement between sovereign states.. A formally concluded and ratified agreement between sovereign states. Treaties govern peace, alliances, trade, territorial boundaries, and rights. They are both ends and beginnings — the formal closing of one era and the legal framework of the next.
Where does the word "Treaty" come from?
From Old French 'traité' (agreement); from Latin 'tractatus' (treatment, handling). Treaties as formal instruments of international law have existed since antiquity.