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"Buenas noches" is a form of "buenas noches", a phrase which is often translated as "good evening". "Adiós" is a form of "adiós", an interjection which is often translated as "goodbye". Learn more about the difference between "buenas noches" and "adiós" below.
buenas noches(
bweh
-
nahs
 
noh
-
chehs
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. good evening
Buenas noches y bienvenidos.Good evening and welcome.
a. good night
Me voy a dormir. ¡Buenas noches!I'm going to sleep. Good night!
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adiós(
ah
-
dyohs
)
An interjection is a short utterance that expresses emotion, hesitation, or protest (e.g., Wow!).
interjection
a. goodbye
Adiós, amor. Que te vaya bien en el trabajo.Goodbye, honey. Have a good day at work.
b. good-bye
¡Adiós, Yolanda! ¡Que tengas buen viaje!Good-bye, Yolanda! Have a good trip!
c. good-by
Regionalism used in the United States
(United States)
¡Adiós! - ¡Nos vemos!Good-by! - See you later!
d. goodby
Regionalism used in the United States
(United States)
Adiós, amigos. Ya me voy.Goodby, guys. I'm out of here.
e. bye
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
(colloquial)
Adiós, Michael. Te veré mañana.Bye, Michael. I'll see you tomorrow.
f. hello (when passing by someone)
Le dije adiós al Sr. García al verlo en la calle.I said hello to Mr. García when I saw him on the street.
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
masculine noun
a. goodbye
Nuestro adiós pareció durar una eternidad.Our goodbye seemed to last forever.
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