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"Las dos" is a form of "las dos", a phrase which is often translated as "two". "Diez" is a form of "diez", an adjective which is often translated as "ten". Learn more about the difference between "las dos" and "diez" below.
las dos(
lahs
dohs
)A phrase is a group of words commonly used together (e.g., once upon a time).
a. two
Tengo una cita con el doctor a las dos, y con este tráfico no sé si voy a llegar.I have a doctor's appointment at two, and with this traffic I'm not sure I'm going to make it.
b. two o'clock
¿No ibas a ir a almorzar con tu papá hoy? Ya son las dos.Weren't you going to have lunch with your dad today? It's already two o'clock.
2. (feminine) (with "two" used as an adjective)
A word or phrase that is feminine (e.g., la manzana).
a. the two
¿Francis Ford Coppola dirigió "El padrino" o "El padrino II"? - El dirigió las dos.Did Francis Ford Coppola direct "The Godfather" or "The Godfather Part II"? - The two were directed by him
b. both
No puedo decidir si pedir la empanada o la arepa, así que voy a pedir las dos.I can't decide whether to get the empanada or the arepa, so I'm going to order both.
diez(
dyehs
)An adjective is a word that describes a noun (e.g., the big dog).
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
2. (number)
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.
