How to Say "confederation" in Spanish
The Spanish word for “confederation” is “confederación” — B2 level.

Examples
La confederación de estudiantes apoya el nuevo plan.
The student confederation supports the new plan.
Trabajo para una confederación de sindicatos internacionales.
I work for a confederation of international labor unions.
Varios países formaron una confederación para mejorar el comercio.
Several countries formed a confederation to improve trade.
The '-ción' Gender Rule
Naming words ending in '-ción' are almost always feminine. You should always use 'la' or 'una' with this word.
Losing the Accent Mark
When you make this word plural ('confederaciones'), the accent mark on the 'o' disappears because the stress naturally stays on the same syllable.
Missing the Accent
Mistake: “La confederacion es grande.”
Correction: La confederación es grande. (Don't forget the accent on the 'o' in the singular form!)
Wrong Gender
Mistake: “El confederación...”
Correction: La confederación... (Words ending in -ción are feminine.)
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