Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

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a [or] A1

 
pronunciation:
eI
parts of speech:
noun, adjective
phrases:
from A to Z
part of speech: noun
inflections: A's
definition 1: the first letter of the English alphabet.
definition 2: a grade given for excellent academic work.
definition 3: the sixth note in the musical scale at C major.
definition 4: one of the four human blood types. (See ABO system.)
phrase: from A to Z
 
part of speech: adjective
definition 1: of the first rank or degree.
definition 2: having the shape of an A.