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"Doble" is a form of "doble", an adjective which is often translated as "double". "A" is a preposition which is often translated as "to". Learn more about the difference between "doble" and "a" below.
doble()
An adjective is a word that describes a noun (e.g., the big dog).
1. (quantity)
b. dual
Tienen doble nacionalidad porque sus padres son de dos países distintos.They have dual nationality because their parents are from two different countries.
This means that the noun can be masculine or feminine, depending on the gender of the noun it refers to (e.g., el doctor, la doctora).
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
4. (quantity)
An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
5. (quantity)
a. twice as much
Estoy comiendo doble ahora que estoy embarazada.I am eating twice as much now that I am pregnant.
b. double
No sé si es el cansancio o mis lentes, pero veo doble.I don't know if it's fatigue or my glasses, but I am seeing double.
a, la a()
A preposition is a word that indicates the relationship between a noun and another word (e.g., He ran through the door.).
a. no direct translation
The following examples show ways to translate this word or phrase without using a direct equivalent.
Podía respirar a duras penas.He was hardly able to breathe.
a. no direct translation
The following examples show ways to translate this word or phrase without using a direct equivalent.
¡A fregar los platos!Go do the dishes!
¡A la cama!Off to bed!
a. no direct translation
The following examples show ways to translate this word or phrase without using a direct equivalent.
Me encantaría ganar dinero a espuertas.I would love to earn lots of money.
Llovía a cántaros.It was pouring.
A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
An abbreviation is the shortened form of a word or group of words (e.g., "UFO" = "unidentified flying object"; "p." = "page").
a. A
El circuito transporta una corriente de 1 A.The circuit carries a current of 1 A.
La intensidad de la corriente eléctrica se mide en A.The intensity of an electric current is measured in A.
