QUICK ANSWER
"No" is a form of "no", an interjection which is often translated as "no". "They are good" is a phrase which is often translated as "son buenos". Learn more about the difference between "they are good" and "no" below.
they are good(
they
ar
good
)A phrase is a group of words commonly used together (e.g., once upon a time).
1. (moral)
a. son buenos
My kids would never hurt your dog. They are good.Mis hijos jamás lastimarían a tu perro. Son buenos.
2. (skilled)
a. son buenos
We have great players on the team. They are good at attacking and defending.Tenemos jugadores excelentes en el equipo. Son buenos jugando en ataque y defensa.
a. son buenos
My cousins don't misbehave. They are good and very respectful.Mis primos no se portan mal. Son buenos y muy respetuosos.
no(
no
)An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
1. (negation)
a. no
His new apartment is no larger than the last one.Su nuevo apartamento no es más grande que el último.
I have been dieting for a month, but I am no thinner than I was.Llevo un mes de dieta, pero no he enflaquecido nada.
An interjection is a short utterance that expresses emotion, hesitation, or protest (e.g., Wow!).
3. (negation)
An adjective is a word that describes a noun (e.g., the big dog).
4. (not any)
b. sin (used as a preposition in Spanish)
She did it all on her own, with no help at all.Lo hizo todo sola, sin ayuda de nadie.
a. no direct translation
This refers to an idiomatic word or phrase for which there is no word-for-word translation.
It says "no parking." You can't leave your car here.Dice "prohibido el estacionamiento"; no puedes dejar aquí el coche.
There's a sign on my son's door that says "no girls allowed."Hay un anuncio en la puerta de mi hijo que dice "no se admiten chicas".
6. (no way of)
a. no direct translation
This refers to an idiomatic word or phrase for which there is no word-for-word translation.
If my parents see the house like this, there's no telling what they'll do.Si mis padres ven la casa en tal estado, quién sabe lo que harán.
There's no avoiding the issue any more.Ya no se puede eludir el asunto.
A noun is a word referring to a person, animal, place, thing, feeling, or idea (e.g., man, dog, house).
b. el voto en contra (M) (politics)
(m) means that a noun is masculine. Spanish nouns have a gender, which is either feminine (like la mujer or la luna) or masculine (like el hombre or el sol).
The bill received 64 noes, and did not pass.La propuesta de ley recibió 64 votos en contra y fue rechazada.
