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"Alta" is a form of "alta", a noun which is often translated as "discharge form". "Voz baja" is a phrase which is often translated as "low voice". Learn more about the difference between "voz baja" and "alta" below.
el alta(
ahl
-
tah
)A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
1. (medicine)
a. discharge form
Necesito una copia del alta médica que te dieron.I need a copy of the medical discharge form you were given.
2. (enrollment)