Usage Note
Poderío conveys a grander, more emphatic sense of power than plain poder — it suggests dominance or impressive strength, often used in historical, military, or rhetorical contexts. The written accent on the í breaks the -ío into two syllables, with the stress on -rí-. It is rarely used in everyday conversation; poder suffices there.
Examples
"El poderío militar del imperio era enorme."
Natural Translation
The military might of the empire was enormous.

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