A- 1. First letter and first vowel of the English Alphabet.
2. A graphic representation or emblem associated with this letter.
3. A speech counterpart of orthographic 'a'
4. A graphic device for reproducing the first letter of the English alphabet.
5. A speech sound represented by the letter a
6. The first in a series
7. (Music) The sixth tone in the scale of C major or the first note in the related minor scale
b. The key or scale in which A is the tonic.
c. A written or printed note representing this tone
d. A string, key, or pipe tuned to the pitch of this tone.
8. The highest grade in quality or rank
9. Something shaped like the letter A