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"Son las once" is a phrase which is often translated as "it's eleven o'clock", and "veinticinco" is an adjective which is often translated as "twenty-five". Learn more about the difference between "son las once" and "veinticinco" below.
son las once(
sohn
 
lahs
 
ohn
-
seh
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. it's eleven o'clock
Son las once. La reunión empieza dentro de media hora.It's eleven o'clock. The meeting will start in half an hour.
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veinticinco(
beyn
-
tee
-
seeng
-
koh
)
An adjective is a word that describes a noun (e.g., the big dog).
adjective
a. twenty-five
Hay veinticinco alumnos en este salón.There are twenty-five students in this classroom.
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
masculine noun
a. twenty-five
El veinticinco fue el número ganador.Twenty-five was the winning number.
b. twenty-fifth (in dates)
Tenemos que pagar las clases de natación el veinticinco de cada mes.We have to pay for the swimming lessons on the twenty-fifth of each month.
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