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Vent vs Undefined - What's the difference?

vent | undefined |

As a numeral vent

is .

As an adjective undefined is

lacking a definition or value.

vent

English

Etymology 1

Partly from (etyl) vent, from (etyl) ventus and party from (etyl) .

Noun

(en noun)
  • An opening through which gases, especially air, can pass.
    • the vent''' of a cask; the '''vent of a mould
  • A small aperture.
  • * Shakespeare
    • Look, how thy wounds do bleed at many vents .
  • * Alexander Pope
    • Long 'twas doubtful, both so closely pent, / Which first should issue from the narrow vent .
  • The opening of a volcano from which lava flows.
  • A verbalized frustration.
  • The excretory opening of lower orders of vertebrates.
  • A slit in the seam of a garment.
  • The opening at the breech of a firearm, through which fire is communicated to the powder of the charge; touchhole.
  • In steam boilers, a sectional area of the passage for gases divided by the length of the same passage in feet.
  • Opportunity of escape or passage from confinement or privacy; outlet.
  • Emission; escape; passage to notice or expression; publication; utterance.
  • * Milton
    • without the vent of words
  • * Shakespeare
    • Thou didst make tolerable vent of thy travel.
    Derived terms
    * ridge vent

    Verb

    (en verb)
  • To allow gases to escape.
    • The stove vents to the outside.
  • To allow to escape through a vent.
    • Exhaust is vented to the outside.
  • (intransitive) To express a strong emotion.
    • He vents his anger violently.
    Can we talk? I need to vent .
  • * 2013 June 18, , " Protests Widen as Brazilians Chide Leaders," New York Times (retrieved 21 June 2013):
    • But the demonstrators remained defiant, pouring into the streets by the thousands and venting their anger over political corruption, the high cost of living and huge public spending for the World Cup and the Olympics.
  • To snuff; to breathe or puff out; to snort.
    • (Spenser)

    Etymology 2

    Noun

    (en noun)
  • Ventriloquism.
    • Derived terms
    * vent puppet

    Etymology 3

    (etyl) vente, from (etyl) (lena) .

    Noun

  • sale; opportunity to sell; market
    • (Shelton)
  • * Sir W. Temple
    • There is no vent for any commodity but of wool.

    Verb

    (en verb)
  • To sell; to vend.
  • * Sir Walter Raleigh
    • Therefore did those nations vent such spice.

    Etymology 4

    (etyl) .

    Noun

    (en noun)
  • (obsolete) A baiting place; an inn.
    • ----

    undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined