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"Tu" is a form of "tu", an adjective which is often translated as "your". "En casa" is a phrase which is often translated as "at home". Learn more about the difference between "en casa" and "tu" below.
en casa(
ehn
 
kah
-
sah
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. at home
Estaba en casa viendo tele cuando llamó.I was at home watching TV when he called.
b. home
Ya estoy en casa.I'm home already.
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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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