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A vs Null - What's the difference?

a | null |

As a letter a

is the letter a with a tilde.

As a noun null is

zero, nil; the cardinal number before einn.

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

    ----

    null

    English

    Noun

    (en noun)
  • A non-existent or empty value or set of values.
  • Zero]] quantity of [[expression, expressions; nothing.
    • (Francis Bacon)
  • Something that has no force or meaning.
  • (computing) the ASCII or Unicode character (), represented by a zero value, that indicates no character and is sometimes used as a string terminator.
  • (computing) the attribute of an entity that has no valid value.
    • Since no date of birth was entered for the patient, his age is null .
  • One of the beads in nulled work.
  • (statistics) null hypothesis

    • Adjective

    (en adjective)
  • Having no validity, "null and void"
  • insignificant
  • * 1924 , Marcel Proust, Within a Budding Grove :
    • In proportion as we descend the social scale our snobbishness fastens on to mere nothings which are perhaps no more null than the distinctions observed by the aristocracy, but, being more obscure, more peculiar to the individual, take us more by surprise.
  • absent or non-existent
  • (mathematics) of the null set
  • (mathematics) of or comprising a value of precisely zero
  • (genetics, of a mutation) causing a complete loss of gene function, amorphic.

    • Derived terms

    * nullity

    Verb

    (en verb)
  • to nullify; to annul
    • (Milton)

    Related terms

    * annul

    See also

    * nil ----