I. ˈjā noun
( plural j's or js ˈjāz)
Usage: often capitalized, often attributive
Date: 15th century
1.
a. : the 10th letter of the English alphabet
b. : a speech counterpart of orthographic j
2.
a. : a graphic device for reproducing the letter j
b. : a unit vector parallel to the y-axis
3. : one designated j especially as the 10th in order or class
4. : something shaped like the letter J
II. abbreviation
1. jack
2. journal
3. judge; justice