A

character

1. 1

   The first letter of the English alphabet, called a and written in the Latin script.

   Apple starts with A.

   Boxer could not get beyond the letter D. He would trace out A, B, C, D, in the dust with his great hoof […]

numeral

1. 1

   The first numeral symbol of the English alphabet, called a and written in the Latin script.

   Item A is "foods", item B is "drinks".

symbol

1. 1

   A rank, normally the highest rank, on any of various scales that assign letters.

   We assign each item inspected a rating from A through G, depending on various factors.

   In the UK, the highest social grade is A – upper middle class.

   The only standard brassiere cup size smaller than the A cup is the AA cup.

2. 2

   The highest letter grade assigned (disregarding plusses and minuses).

   I was so happy to get an A on that test.

   Darcy's pretty sharp. She pulls A's.

3. 3

   A tone three fifths above C in the cycle of fifths; the sixth tone of the C major scale; the first note of the minor scale of A minor; the reference tone that occurs at exactly 440 Hz; the printed or written note A; the scale with A as its keynote.

   Orchestras traditionally tune to a concert A.

4. 4

   A blood type that has a specific antigen that aggravates the immune response in people with type B antigen in their blood. People with this blood type may receive blood from type A or type O but cannot receive blood from AB or B.

   My blood type is A negative.

5. 5

   Mass number.

6. 6

   A universal affirmative suggestion.

7. 7

   Allele dominant.

8. 8

   Variant of adulterer or adulteresshistoricalAbbreviation of adulterer or adulteress, used as a human brand.

   Hester Prynne, the historical character in The Scarlet Letter, was exposed and convicted by neighborhood gossip. [...] Gossip continues to brand some young ladies in small towns with this symbolic letter, but in our larger cities one rarely sees young ladies branded with an "A".

9. 9

   Variant of A.M. and AMAlternative spelling of A.M. and AM (“ante meridiem”).

noun

1. 1

   Ace. (including in card games)

2. 2

   Acre.

3. 3

   Adult; as used in film rating.

4. 4

   Ammeter.

5. 5

   Angstrom.

6. 6

   Answer.

7. 7

   An assist.

8. 8

   Asexual.

9. 9

   Arsehole.

10. 10

    Atom.

    A-bomb

adjective

1. 1

   Atom; atomic.

Forms

plural

As, A's