a

Main Entry:: ¹a
Pronunciation:: \ˈā\
Function:: noun
Inflected Form(s):: plural a's or as \ˈāz\
Usage:: often capitalized often attributive
Date:: before 12th century

1 a: the 1st letter of the English alphabet b: a graphic representation of this letter c: a speech counterpart of orthographic a2: the sixth tone of a C-major scale3: a graphic device for reproducing the letter a4: one designated a especially as the first in order or class5 a: a grade rating a student's work as superior in quality b: one graded or rated with an A6: something shaped like the letter A7capitalized : the one of the four ABO blood groups characterized by the presence of antigens designated by the letter A and by the presence of antibodies against the antigens present in the B blood group

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