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"Una" is a form of "una", a noun which is often translated as "one". "Setenta" is an adjective which is often translated as "seventy". Learn more about the difference between "una" and "setenta" below.
la una(
oo
-
nah
)
A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
feminine noun
a. one
Es la una de la tarde.It's one in the afternoon.
b. one o'clock
Tengo una cita a la una.I have an appointment at one o'clock.
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setenta(
seh
-
tehn
-
tah
)
An adjective is a word that describes a noun (e.g., the big dog).
adjective
a. seventy
Hay setenta personas en nuestra pequeña fiesta.There are seventy people at our little party.
b. seventieth (ordinal)
La tienda festejará el setenta aniversario de su apertura el próximo año.The store will celebrate the seventieth anniversary of its opening next year.
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
masculine noun
a. seventy
Sesenta más diez es igual a setenta.Sixty plus ten equals seventy.
a. seventies
Mi música favorita es la de los setenta.Seventies music is my favorite.
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