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"Diez" is a form of "diez", an adjective which is often translated as "ten". "Son las doce" is a phrase which is often translated as "it's twelve o'clock". Learn more about the difference between "son las doce" and "diez" below.
son las doce(
sohn
 
lahs
 
doh
-
seh
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. it's twelve o'clock
¿Qué hora es, por favor? - Son las doce.What time is it, please? - It's twelve o'clock.
b. it's midnight (at night)
¿Estás loco? Yo ya no salgo. ¡Son las doce de la noche!Are you crazy? I'm not going out. It's midnight!
c. it's noon (at midday)
Son las doce y esta es la hora a la que la gente empieza a almorzar en este país.It's noon and this is the time people start having lunch in this country.
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diez(
dyehs
)
An adjective is a word that describes a noun (e.g., the big dog).
adjective
a. ten
Solo había diez personas en la oficina hoy a causa de la nieve.There were only ten people in the office today because of the snow.
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
masculine noun
a. ten
Ella lleva un diez en su camiseta en honor a su jugadora favorita.She wears a ten on her jersey in honor of her favorite player.
b. tenth (in dates)
Celebraremos mi cumpleaños el diez de enero.We'll celebrate my birthday on the tenth of January.
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