A

English Meaning

In; on; at; by.

1. The first letter of the modern English alphabet.
2. Any of the speech sounds represented by the letter a.
3. The first in a series.
4. Something shaped like the letter A.
5. The best or highest in quality or rank: grade A milk.
6. Music The sixth tone in the scale of C major or the first tone in the relative minor scale.
7. Music A key or scale in which A is the tonic.
8. Music A written or printed note representing this tone.
9. Music A string, key, or pipe tuned to the pitch of this tone.
10. One of the four major blood groups in the ABO system. Individuals with this blood group have the A antigen on the surface of their red blood cells, and the anti-B antibody in their blood serum.
11. from A to Z Completely; thoroughly.
12. Used before nouns and noun phrases that denote a single but unspecified person or thing: a region; a person.
13. Used before terms, such as few or many, that denote number, amount, quantity, or degree: only a few of the voters; a bit more rest; a little excited.
14. Used before a proper name to denote a type or a member of a class: the wisdom of a Socrates.
15. Used before a mass noun to indicate a single type or example: a dry wine.
16. The same: birds of a feather.
17. Any: not a drop to drink.
18. In every; to each; per: once a month; one dollar a pound.
19. Informal Have: He'd a come if he could.
20. acceleration
21. are (measurement)

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