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QUICK ANSWER
"Hello" is a form of "hello", an interjection which is often translated as "hola". "Who are you" is a form of "who are you", a phrase which is often translated as "quién eres". Learn more about the difference between "hello" and "who are you" below.
hello(
heh
-
lo
)An interjection is a short utterance that expresses emotion, hesitation, or protest (e.g., Wow!).
1. (salutation)
d. aló (Ecuador) (Panama) (Southern Cone)
Regionalism used in Ecuador
Regionalism used in Panama
Hello. Who is this?Aló. ¿Quién es?
who are you
A phrase is a group of words commonly used together (e.g., once upon a time).
a. quién eres (informal) (singular)
A word or phrase used to refer to the second person informal “tú” by their conjugation or implied context (e.g., How are you?).
A word or phrase that is singular (e.g., el gato).
Who are you? I can't let strangers come into the house.¿Quién eres? No puedo dejar entrar a extraños en la casa.
b. quién es (formal) (singular)
A word or phrase used to refer to the second person formal “usted” by their conjugation or implied context (e.g., usted).
A word or phrase that is singular (e.g., el gato).
Who are you and what do you want?¿Quién es y qué quiere?
a. quiénes son (plural)
A word or phrase that is plural (e.g., los libros).
Who are you? - We are detectives and we've come to investigate the crime scene.¿Quiénes son? - Somos detectives y vinimos para investigar la escena del crimen.
