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Knock vs Null - What's the difference?

knock | null |

As nouns the difference between knock and null

is that knock is an abrupt rapping sound, as from an impact of a hard object against wood while null is zero, nil; the cardinal number before einn.

As a verb knock

is (dated) to rap one's knuckles against something, especially wood.

knock

English

Noun

(en noun)
  • An abrupt rapping sound, as from an impact of a hard object against wood
  • I heard a knock on my door.
  • An impact.
  • He took a knock on the head.
  • (figurative) criticism
  • * 2012 , Tom Lamont, How Mumford & Sons became the biggest band in the world'' (in ''The Daily Telegraph , 15 November 2012)[http://www.guardian.co.uk/music/2012/nov/15/mumford-sons-biggest-band-world]
  • Since forming in 2007 Mumford & Sons have hard-toured their way to a vast market for throaty folk that's strong on banjo and bass drum. They have released two enormous albums. But, wow, do they take some knocks back home.
  • (cricket) a batsman's innings.
  • He played a slow but sure knock of 35.
  • (automotive) Preignition, a type of abnormal combustion occurring in spark ignition engines caused by self-ignition or the characteristic knocking sound associated with it.
  • Verb

    (en verb)
  • (dated) To rap one's knuckles against something, especially wood.
  • Knock on the door and find out if they're home.
  • (dated) To strike for admittance; to rap upon, as a door.
  • * Shakespeare
  • Master, knock the door hard.
  • (ambitransitive, dated) To bump or impact.
  • I knocked against the table and bruised my leg.
    I accidentally knocked my drink off the bar.
  • * 1900 , L. Frank Baum, The Wonderful Wizard of Oz Chapter 23
  • "The Silver Shoes," said the Good Witch, "have wonderful powers. And one of the most curious things about them is that they can carry you to any place in the world in three steps, and each step will be made in the wink of an eye. All you have to do is to knock the heels together three times and command the shoes to carry you wherever you wish to go."
  • (colloquial) To denigrate, undervalue.
  • Don't knock it until you've tried it.
  • (soccer) To pass, kick a ball towards another player.
  • * {{quote-news
  • , year=2011 , date=January 11 , author=Jonathan Stevenson , title=West Ham 2 - 1 Birmingham , work=BBC citation , page= , passage=Despite enjoying more than their fair share of possession the visitors did not look like creating anything, with their lack of a killer ball painfully obvious as they harmlessly knocked the ball around outside the home side's box without ever looking like they would hurt them. }}

    Derived terms

    * knock someone's block off * knock someone's socks off

    Derived terms

    * antiknock * knock about * knock around * knock down * knock for a loop * knock it off * knock knock * knock off / knockoff * knock oneself out * knock somebody's socks off * knock out / knockout * knock over * knock up * knocked up * knocker * knocker up * knocking shop * school of hard knocks English onomatopoeias 1000 English basic words

    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)

    See also

    * nil ----