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"Son las nueve" is a phrase which is often translated as "it's nine o'clock", and "veinte" is an adjective which is often translated as "twenty". Learn more about the difference between "son las nueve" and "veinte" below.
son las nueve(
sohn
lahs
nweh
-
beh
)A phrase is a group of words commonly used together (e.g., once upon a time).
1. (general)
a. it's nine o'clock
Son las nueve de la noche y Alicia todavía no llegó.It's nine o'clock in the evening, and Alicia has not arrived yet.
veinte(
beyn
-
teh
)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)
b. twentieth (in dates)
El veinte del mes que viene me voy a España.I'm going to Spain on the twentieth of next month.