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Lever vs Null - What's the difference?

lever | null |

As nouns the difference between lever and null

is that lever is (mechanics)   a rigid piece which is capable of turning about one point, or axis (the fulcrum ), and in which are two or more other points where forces are applied; — used for transmitting and modifying force and motion or lever can be (rare) a levee while null is zero, nil; the cardinal number before einn.

As a verb lever

is to move with a.

As an adverb lever

is (obsolete) rather.



(wikipedia lever)

Etymology 1

From (etyl) leveor, ; see levant. Compare alleviate, elevate, leaven.


(en noun)
  • (mechanics)   A rigid piece which is capable of turning about one point, or axis (the fulcrum ), and in which are two or more other points where forces are applied; — used for transmitting and modifying force and motion.
  • # Specifically, a bar of metal, wood or other rigid substance, used to exert a pressure, or sustain a weight, at one point of its length, by receiving a force or power at a second, and turning at a third on a fixed point called a fulcrum. It is usually named as the first of the six mechanical powers, and is of three kinds, according as either the fulcrum F, the weight W, or the power P, respectively, is situated between the other two, as in the figures.
  • A small such piece to trigger or control a mechanical device (like a button).
  • (mechanics)   A bar, as a capstan bar, applied to a rotatory piece to turn it.
  • * {{quote-magazine, date=2012-03
  • , author=(Henry Petroski) , title=Opening Doors , volume=100, issue=2, page=112-3 , magazine= citation , passage=A doorknob of whatever roundish shape is effectively a continuum of levers , with the axis of the latching mechanism—known as the spindle—being the fulcrum about which the turning takes place.}}
  • (mechanics)   An arm on a rock shaft, to give motion to the shaft or to obtain motion from it.
  • Verb

  • To move with a .
  • ''With great effort and a big crowbar I managed to lever the beam off the floor.
  • (figuratively) To use, operate like a .
  • To increase the share of debt in the capitalization of a business.
  • *
  • Derived terms

    * leverage * compound lever * lever escapement * lever jack * lever watch * universal lever

    Etymology 2

    From (etyl) comparative of of Germanic origin (compare German lieb) or lief.


  • (obsolete) Rather.
  • * 1530 , , The Four PP
  • for I had lever be without ye / Then have suche besines about ye
  • * 1537 ,
  • Now therefore take my life from me, for I had lever die then live.
  • * 1590 ,
  • For lever had I die than see his deadly face.

    Etymology 3

    From (etyl) lever.


    (en noun)
  • (rare) A levee.
  • * 1742 , Miss Robinson, Mrs. Delany's Letters , II.191:
  • We do not appear at Phœbus's Levér .
  • * 2011 , Tim Blanning, "The reinvention of the night", Times Literary Supplement , 21 Sep 2011:
  • Louis XIV’s day began with a lever at 9 and ended (officially) at around midnight.


    * * ----




    (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


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

    See also

    * nil ----