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Porthole vs Undefined - What's the difference?

porthole | undefined |

As a noun porthole

is a circular window set in the hull of a ship.

As an adjective undefined is

lacking a definition or value.

porthole

English

Noun

(en noun)
  • A circular window set in the hull of a ship.

    • Synonyms

    * scuttle

    Anagrams

    *

    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