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Spectacles vs Undefined - What's the difference?

spectacles | undefined |

As a noun spectacles

is .

As an adjective undefined is

lacking a definition or value.

spectacles

English

(wikipedia spectacles)

Noun

(head)
  • (plural only, formal) A pair of lenses set in a frame worn on the nose and ears in order to correct deficiencies in eyesight or to ornament the face.

    • Synonyms

    * eyeglasses (US), glasses, pair of eyeglasses (US), pair of glasses, pair of specs (colloquial), pair of spectacles, specs (colloquial)

    See also

    * bespectacled * bifocals * contact, contact lens * eyepiece * lens * monocle * pince-nez * shades * sunglasses * sunnies * varifocals * * ----

    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