J is the tenth letter of the English alphabet. It is a later variant form of the Roman letter I, used to express a consonantal sound, that is, originally, the sound of English y in yet. The forms J and I have, until a recent time, been classed together, and they have been used interchangeably.Note: In medical prescriptions j is still used in place of i at the end of a number, as a Roman numeral; as, vj, xij. J is etymologically most closely related to i, y, g; as in jot, iota; jest, gesture; join, jugular, yoke. See I. J is a compound vocal consonant, nearly equivalent in sound to dzh. It is exactly the same as g in gem. See Guide to Pronunciation, §§ 179, 211, 239.
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Etymology Proposed in 1908 as part of the new Latvian spelling by the scientific commission headed by K. Mīlenbahs, which was accepted and began to be taught in schools in 1909. Prior to that, Latvian had been written in German Fraktur, and sporadically in Cyrillic.
Noun j (plural js) (slang) A term for a marijuana cigarette ('joint'). "I went outside to smoke myself a J" — Paul Simon, from the song "Late in the Evening" from the album, "One Trick Pony." (mathematics) An alternative version of i, the positive square root of -1; used in the context of electronics. (mathematics) The second unit vector, after i
(IPA) palatal approximant (pharmacy, obsolete) one ℥j one ounce (physics) imaginary unit
Letter j lower case (upper case J) The tenth letter of the basic modern Latin alphabet.
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