vs 

QUICK ANSWER
"Tu" is a form of "tu", an adjective which is often translated as "your". "¿Cómo estás?" is a phrase which is often translated as "How are you?". Learn more about the difference between "¿Cómo estás?" and "tu" 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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tu(
too
)
An adjective is a word that describes a noun (e.g., the big dog).
adjective
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)
(possessive)
a. your
Mi casa es tu casa.My house is your house.
Ahora es tu turno.Now it's your turn.
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