- A symbol used to describe the event at the head of an activity arrow in a critical path method (CPM) schedule.
(written as J)A mathematical unit equal to the square root of -1. That is, j2 = -1. It is used in complex numbers. j is usually used in electronics, while i is usually used in other fields.
(written as J)A high-level programming language especially suited for mathematical applications.
(written as J)symbol for current density, or electric current density.
- noun a joint (a cigarette containing cannabis). An abbreviation from the jargon of drug users, dating from the mid-1960s.
- symbol forJustice
(written as J)