WordReference English-Spanish Dictionary © 2014:

Principal Translations
gastar vtrverbo transitivo: Verbo que requiere de un objeto directo ("di la verdad", "encontré una moneda"). (emplear dinero)spend vtrtransitive verb: Verb taking a direct object--for example, "Say something." "She found the cat."
 Gastan demasiado en ropa; no saben ahorrar.
 They spend too much on clothes; they don't know how to save.
gastar vtrverbo transitivo: Verbo que requiere de un objeto directo ("di la verdad", "encontré una moneda"). (consumir, usar)use vtrtransitive verb: Verb taking a direct object--for example, "Say something." "She found the cat."
  use up vtr phrasal sepphrasal verb, transitive, separable: Verb with adverb(s) or preposition(s), having special meaning, divisible--for example, "call off" [=cancel], "call the game off," "call off the game."
  (formal)consume vtrtransitive verb: Verb taking a direct object--for example, "Say something." "She found the cat."
 Mi coche es de cuatro cilindros, gasta poca gasolina.
 My car is a four-cylinder; it uses little gasoline.
 
Additional Translations
gastar vtrverbo transitivo: Verbo que requiere de un objeto directo ("di la verdad", "encontré una moneda"). (desgastar con el uso)wear out vtrtransitive verb: Verb taking a direct object--for example, "Say something." "She found the cat."
 Si arrastras los pies al caminar, gastas la suela de tus zapatos.
 If you drag your feet when you walk, you'll wear out your shoe soles.
gastarse v prnlverbo pronominal: Verbo que se conjuga con un pronombre átono ("me", "te", "se") que concuerda con el sujeto ("lavarse", "irse", "enojarse"). (desgastarse con el uso)wear out viintransitive verb: Verb not taking a direct object--for example, "She jokes." "He has arrived."
 Los puños del abrigo se gastaron con el roce.
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WordReference English-Spanish Dictionary © 2014:

Compound Forms:
gastar | gastar (en)
gastar por gastar spend for spending's sake
  spend just to spend
gastar saliva loc verblocución verbal: Unidad léxica estable formada de dos o más palabras que funciona como verbo ("sacar fuerzas de flaqueza", "acusar recibo"). coloquial (hablar en vano)waste your breath exprexpression: Prepositional phrase, adverbial phrase, or other phrase or expression--for example, "behind the times," "on your own."
 No gastes saliva que nadie te está escuchando.
gastar tiempo en waste time on
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'gastar' found in these entries
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English:

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