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Definición de “A, a” en inglés

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A, a

noun uk   // ( plural As, A's or a's) us  

A, a noun (LETTER)

[C or U] the first letter of the English alphabet

A, a noun (MUSIC)

[C or U] a note in Western music: This concerto is in the key of A major.

A, a noun (MARK)

[C or U] a mark in an exam or for a piece of work that shows that your work is considered excellent: Sophie got an A for English. She got straight As (= all her marks were As) in her final exams. Jim is a straight-A student (= all his marks are A).
(Definition of A, a from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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