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"Tu" is a form of "tu", an adjective which is often translated as "your". "Todo bien, gracias" is a phrase which is often translated as "everything's fine, thank you". Learn more about the difference between "tu" and "todo bien, gracias" below.
tu(
too
)An adjective is a word that describes a noun (e.g., the big dog).
1. (informal) (possessive)
A word or phrase used to refer to the second person informal “tú” by their conjugation or implied context (e.g., How are you?).
todo bien, gracias(
toh
-
doh
byehn
grah
-
syahs
)A phrase is a group of words commonly used together (e.g., once upon a time).
1. (general)
a. everything's fine, thank you
¿Cómo van las cosas en casa, Joe? - Todo bien, gracias.How's things at home, Joe? - Everything's fine, thank you.