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Excellency vs Undefined - What's the difference?

excellency | undefined |

As a noun excellency

is the quality of being excellent.

As an adjective undefined is

lacking a definition or value.

excellency

English

Noun

(Excellencies)
  • A form of address for certain high officials or dignitaries.

    • Synonyms

    * Excellence

    Derived terms

    * His Excellency * Her Excellency * Your Excellency

    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