often capitalized, often attributive
1
a : the 10th letter of the English alphabet
b : a speech counterpart of orthographic j (as j in jump)
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
5
J,
plural J's or Js,
basketball, informal : jump shot … she flicked a pass to the corner, where Lawson nailed a J to tie the game at 51. Hank Hersch