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J
1[jey]
noun
plural
J's, Js, j's, js.the tenth letter of the English alphabet, a consonant.
any spoken sound represented by the letter J or j, as in just, major, or rajah.
something having the shape of a J .
a written or printed representation of the letter J or j.
a device, as a printer's type, for reproducing the letter J or j.
J
3the tenth in order or in a series.
(sometimes lowercase)the medieval Roman numeral for 1.
j
4Mathematics.a unit vector on the y-axis of a coordinate system.
Engineering.the imaginary number .
J.
5abbreviation
Cards.Jack.
Journal.
Judge.
Justice.
j
1/ ɪ /
noun
the tenth letter and seventh consonant of the modern English alphabet
a speech sound represented by this letter, in English usually a voiced palato-alveolar affricate, as in jam
j
2symbol
maths the unit vector along the y -axis
Also called: i.obsoletethe imaginary number √–1
J
3symbol
cards jack
joule(s)
current density
abbreviation
Japan (international car registration)
J
Abbreviation of joule
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