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Enter two words to compare and contrast their definitions, origins, and synonyms to better understand how those words are related.

A vs Ad - What's the difference?

a | ad |

As a noun ad is

(informal) advertisement or ad can be (tennis) advantage.

As a preposition ad is

to, toward.

a

Translingual

Etymology 1

From (etyl) letter .

Letter

  • The first letter of the .
    • See also
    (Latn-script) *

    Symbol

    (head)
  • (Marks the first item in a list)
    • A . Go to the store. B. Get some food. C. Return home. D. Eat.
  • A hypothetical item or person designated first when there are more than one.
    • Person A had 5 apples, and person B...
  • The hexadecimal digit for 10
    • 0x0000000A
    The value is hexadecimal A 0, or decimal 160.
  • A standard size of dry cell battery slightly larger than a AA battery.
  • A system of paper sizes with similar proportions, as , etc.
    • See also
    * (previous) , (next) B

    Related terms

    (Letters sharing the same origin as "A") * Arabic * Coptic * Cyrillic * Devan?gari * Greek * Hebrew * Phoenician * Syriac

    Etymology 2

    Abbreviation of various terms.

    Symbol

    (head)
  • Symbol for the element Argon (Since 1956 has been changed to Ar).
  • area

    • Abbreviation

    (Abbreviation) (head)
  • ampere, a unit of electrical current.
  • IUPAC 1-letter abbreviation for adenine in genetic code.
  • IUPAC 1-letter abbreviation for alanine in proteins.
  • Austria

    • See also

    {{Letter, page=A , NATO=Alpha , Morse=·– , Character=A1 , Braille=? }} Image:Latin A.png, Capital and lowercase versions of A , in normal and italic type File:Fraktur letter A.png, Uppercase and lowercase A in Fraktur File:UncialA-01.svg, A in uncial script

    External links

    * (wikipedia "A")

    References

    ----

    ad

    Translingual

    Symbol

    (head)
  • The ISO 3166-1 two-letter (alpha-2) code for Andorra.
    • ISO 3166-1 ----