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"The one and only" is a phrase which is often translated as "único", and "only one" is a noun which is often translated as "el único". Learn more about the difference between "the one and only" and "only one" below.
the one and only(
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)A phrase is a group of words commonly used together (e.g., once upon a time).
1. (general)
a. único
Jeff is the one and only person who has been trained on this software.Jeff es la única persona que ha recibido adiestramiento sobre este software.
b. único e incomparable
Tonight's show features the one and only "Singing Chimp."El espectáculo de esta noche tiene como protagonista al único e incomparable "Mono Que Canta".
only one(
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)A noun is a word referring to a person, animal, place, thing, feeling, or idea (e.g., man, dog, house).
a. el único (M) (masculine)
(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).
You're the only one I told my secret to.Eres el único a quien dije mi secreto.
b. la única (F) (feminine)
(f) means that a noun is feminine. Spanish nouns have a gender, which is either feminine (like la mujer or la luna) or masculine (like el hombre or el sol).
My sister is the only one still in Ecuador.Mi hermana es la única que permanece en Ecuador.
a. el único (M) (masculine)
(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).
If you want to go to an Italian restaurant, Piero's is the only one.Si quieres ir a un restaurante italiano, Piero's es el único.
b. la única (F) (feminine)
(f) means that a noun is feminine. Spanish nouns have a gender, which is either feminine (like la mujer or la luna) or masculine (like el hombre or el sol).
I've searched forever for the perfect white T-shirt, and this is the only one.He buscado la camiseta blanca perfecta por una eternidad, y ésta es la única.
An adjective is a word that describes a noun (e.g., the big dog).
b. sólo una (feminine)
Only one artwork will win the contest.Sólo una obra de arte va a ganar el concurso.
c. solamente un (masculine)
It was only one kiss. It's not a big deal.Fue solamente un beso. No es importante.
d. solamente una (feminine)
Professor Wilson is teaching only one class this semester.Profesor Wilson va a enseñar solamente una clase este semestre.