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"Por favor" is a phrase which is often translated as "please", and "Susana" is a proper noun which is often translated as "Susan". Learn more about the difference between "por favor" and "Susana" below.
por favor()
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. please
Dame comida, por favor.Give me food, please.
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Susana()
A proper noun refers to the name of a person, place, or thing.
proper noun
a. Susan
My profesora de piano se llama Susana.My piano teacher is called Susan.
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