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  1. J - Wikipedia

    • J or j is the tenth letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its usual name in English is jay , with a now-uncommon variant jy /ˈdʒaɪ/. When used in the International Phonetic Alphabet for the voiced palatal approximant (the sound of "y" in "yes") it may be … See more

    History

    The letter J used to be used as the swash letter I, used for the letter I at the end of Roman numerals when following another I, … See more

    Use in writing systems

    In English, ⟨j⟩ most commonly represents the affricate /dʒ/. In Old English, /dʒ/ was represented orthographically with ⟨cᵹ⟩ (equivalent to ⟨cg⟩, as ⟨ᵹ⟩ in Old English was simply the regular form of the letter G, called … See more

    Other uses

    • In international licence plate codes, J stands for Japan.
    • In mathematics, j is one of the three imaginary units of quaternions.
    • Also in mathematics, j is one of the three unit vectors.… See more

     
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