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"Buenos Aires" is a proper noun which is often translated as "Buenos Aires", and "Argentina" is a proper noun which is often translated as "Argentina". Learn more about the difference between "Buenos Aires" and "Argentina" below.
Buenos Aires(
bweh
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nos
ay
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rehz
)A proper noun refers to the name of a person, place, or thing.
1. (city)
a. Buenos Aires
I need to travel from Buenos Aires to Córdoba.Necesito viajar de Buenos Aires a Cordoba.
2. (region)
a. Buenos Aires
Buenos Aires is the province with the largest population in Argentina.Buenos Aires es la provincia con mayor población de Argentina.