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Vowel vs Undefined - What's the difference?

vowel | undefined |

As a noun vowel

is (phonetics) a sound produced by the vocal cords with relatively little restriction of the oral cavity, forming the prominent sound of a syllable.

As an adjective undefined is

lacking a definition or value.

vowel

English

(wikipedia vowel)

Noun

(en noun)
  • (phonetics) A sound produced by the vocal cords with relatively little restriction of the oral cavity, forming the prominent sound of a syllable.
  • A letter representing the sound of vowel; in English, the vowels are a'', ''e'', ''i'', ''o'' and ''u'', and sometimes ''y .

    • Antonyms

    * (sound) consonant * (letter) consonant

    Related terms

    * semivowel * consonant * liquid

    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