vs 

QUICK ANSWER
"¿Cómo estás?" is a phrase which is often translated as "How are you?", and "buenos días" is a phrase which is often translated as "good morning". Learn more about the difference between "¿Cómo estás?" and "buenos días" below.
¿Cómo estás?(
koh
-
moh
 
ehs
-
tahs
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
1.
A word or phrase used to refer to the second person informal “tú” by their conjugation or implied context (e.g., How are you?).
(informal)
(salutation; singular)
a. How are you?
¡Hola, amiga! ¿Cómo estás?Hey, friend! How are you?
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buenos días(
bweh
-
nohs
 
dee
-
ahs
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. good morning
¡Buenos días a todos!Good morning everybody!
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