How to Say "treaty" in Spanish
The most common Spanish word for “treaty” is “tratado” — use 'tratado' for formal, official agreements specifically between countries or states, such as trade, peace, or border treaties..
tratado
trah-TAH-doh/tɾaˈtaðo/

Examples
Los dos países firmaron un tratado de comercio la semana pasada.
The two countries signed a trade treaty last week.
El profesor publicó un tratado sobre la filosofía moderna.
The professor published a treatise on modern philosophy.
Masculine Noun
Even though it ends in '-o', remember that 'tratado' is a masculine noun, so it always uses 'el' or 'un'.
pacto
PAK-toh/ˈpakto/

Examples
Los dos países firmaron un pacto de no agresión.
The two countries signed a non-aggression pact (agreement).
Llegamos a un pacto para compartir los gastos de la casa.
We reached an agreement to share the household expenses.
Romper el pacto electoral tendrá consecuencias políticas graves.
Breaking the electoral agreement will have serious political consequences.
Gender Check
Remember that 'pacto' is a masculine noun, so it always uses the masculine article: 'el pacto' or 'un pacto'.
Pacto vs. Impacto
Mistake: “Using 'impacto' when you mean 'pacto'.”
Correction: They sound similar, but 'impacto' means 'impact' or 'shock,' while 'pacto' is a formal 'agreement' or 'deal'.
convención
Examples
El país ratificó la convención sobre los derechos del niño.
The country ratified the convention on the rights of the child.
Tratado vs. Pacto vs. Convención
Related Translations
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