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"Buena" is a form of "bueno", an adjective which is often translated as "good". "Estar bueno" is an intransitive verb phrase which is often translated as "to be good". Learn more about the difference between "buena" and "estar bueno" below.
bueno(
bweh
-
noh
)An adjective is a word that describes a noun (e.g., the big dog).
1. (beneficial)
a. good
La dieta mediterránea es muy buena para la salud.The Mediterranean diet is very good for your health.
2. (useful)
4. (virtuous)
a. good
Un buen hombre dio su vida por la comunidad anoche.A good man gave his life in the service of this community last night.
5. (delicious)
6. (colloquial) (attractive)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
An interjection is a short utterance that expresses emotion, hesitation, or protest (e.g., Wow!).
a. ok
Creo que sería mejor ir al restaurante francés. - Bueno, vayamos.I think it'd be better to go to the French restaurant. - Ok, let's go.
estar bueno(
ehs
-
tahr
bweh
-
noh
)An intransitive verb phrase is a phrase that combines a verb with a preposition or other particle and does not require a direct object (e.g., Everybody please stand up.).
a. to be good
Está bueno conocer gente y escuchar sus historias de vida.It's good to meet new people and hear their life stories.
a. to be good
El guisado estaba bueno, pero me gustó más el pollo frito.The stew was good, but I liked the fried chicken better.
3. (colloquial) (to be sexually attractive)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
a. to be hot (colloquial)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
El hermano de Silvia está bueno. Debería trabajar como modelo.Silvia's brother is hot. He should be a model.