vs
QUICK ANSWER
"Veintiuno" is an adjective which is often translated as "twenty-one", and "son las siete" is a phrase which is often translated as "it's seven o'clock". Learn more about the difference between "veintiuno" and "son las siete" below.
veintiuno(
beyn
-
tyoo
-
noh
)An adjective is a word that describes a noun (e.g., the big dog).
1. (number)
a. twenty-one
Solo faltan veintiún días para que salgamos de vacaciones.There are only twenty-one days left until we go on vacation.
Vinieron veintiuna personas a mi cena de cumpleaños.Twenty-one people came to my birthday dinner.
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
2. (number)
a. twenty-one
El ganador de la rifa es el boleto en el que aparece el veintiuno.The winner of the raffle is the ticket with twenty-one on it.
b. twenty-first (in dates)
El solsticio de verano es el veintiuno de junio.The summer solstice is the twenty-first of June.
son las siete(
sohn
lahs
syeh
-
teh
)A phrase is a group of words commonly used together (e.g., once upon a time).
1. (general)
a. it's seven o'clock
Son las siete. Tenemos que irnos ya mismo o perderemos el tren.It's seven o'clock. We need to leave right now or we'll miss the train.
