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Span vs Extension - What's the difference?

span | extension |

As an adjective span

is hairless, glabrous.

As a noun extension is

tract (an area).

span

English

Etymology 1

(etyl) spann

Noun

(en noun)
  • The space from the thumb to the end of the little finger when extended; nine inches; eighth of a fathom.
  • Hence, a small space or a brief portion of time.
  • * Alexander Pope
  • Yet not to earth's contracted span / Thy goodness let me bound.
  • * Farquhar
  • Life's but a span ; I'll every inch enjoy.
  • * 2007 . Zerzan, John. Silence .
  • The unsilent present is a time of evaporating attention spans ,
  • The spread or extent of an arch or between its abutments, or of a beam, girder, truss, roof, bridge, or the like, between supports.
  • The length of a cable, wire, rope, chain between two consecutive supports.
  • (nautical) A rope having its ends made fast so that a purchase can be hooked to the bight; also, a rope made fast in the center so that both ends can be used.
  • (obsolete) A pair of horses or other animals driven together; usually, such a pair of horses when similar in color, form, and action.
  • (mathematics) the space of all linear combinations of something
  • Etymology 2

    Old English spannan

    Verb

    (spann)
  • To traverse the distance between.
  • The suspension bridge spanned the canyon as tenuously as one could imagine.
  • To cover or extend over an area or time period.
  • The parking lot spans three acres.
    The novel spans three centuries.
    World record! 5 GHz WiFi connection spans 189 miles. [http://www.engadget.com/2007/08/27/world-record-5ghz-wifi-connection-spans-189-miles/]
  • * Prescott
  • The rivers were spanned by arches of solid masonry.
  • To measure by the span of the hand with the fingers extended, or with the fingers encompassing the object.
  • to span''' a space or distance; to '''span a cylinder
  • * Bible, Isa. xiviii. 13
  • My right hand hath spanned the heavens.
  • (mathematics) to generate an entire space by means of linear combinations
  • (intransitive, US, dated) To be matched, as horses.
  • To fetter, as a horse; to hobble.
  • Etymology 3

    Verb

    (head)
  • (archaic, nonstandard) (spin)
  • *
  • * '>citation
  • *:a giant pick-up truck span out of control during a stunt show in a Dutch town, killing three people
  • extension

    Noun

    (en noun)
  • The act of extending or the state of being extended; a stretching out; enlargement in breadth or continuation of length; increase; augmentation; expansion.
  • That property of a body by which it occupies a portion of space (or time, e.g. "spatiotemporal extension")
  • (semantics) Capacity of a concept or general term to include a greater or smaller number of objects; — correlative of intension.
  • * {{quote-web
  • , date = 2011-07-20 , author = Edwin Mares , title = Propositional Functions , site = The Stanford Encyclopedia of Philosophy , url = http://plato.stanford.edu/archives/fall2011/entries/propositional-function , accessdate = 2012-07-15}}
    In addition to concepts and conceptual senses, Frege holds that there are extensions of concepts. Frege calls an extension of a concept a ‘course of values’. A course of values is determined by the value that the concept has for each of its arguments. Thus, the course of values for the concept __ is a dog records that its value for the argument Zermela is the True and for Socrates is the False, and so on. If two concepts have the same values for every argument, then their courses of values are the same. Thus, courses of values are extensional.
  • (banking, finance) A written engagement on the part of a creditor, allowing a debtor further time to pay a debt.
  • (medicine) The operation of stretching a broken bone so as to bring the fragments into the same straight line.
  • (weightlifting) An exercise in which an arm or leg is straightened against resistance.
  • (fencing) A simple offensive action, consisting of extending the weapon arm forward.
  • (telecommunication) A numerical code used to specify a specific telephone in a telecommunication network.
  • (computing) A file extension.
  • Files with the ''.txt'' extension usually contain text.
  • (computing) An optional software component that adds functionality to an application.
  • a browser extension
  • (logic) The set of tuples of values that, used as arguments, satisfy the predicate.
  • Synonyms

    * (semantics) denotation

    Antonyms

    * (exercise) curl

    Derived terms

    * extensional * extension cord * hair extension * hyperextension * leg extension * triceps extension * file extension * metaphorical extension

    See also

    * flexion

    Anagrams

    * ----