J Definition
J1
j
noun
- Js, J's, j's
1. The tenth letter of the English alphabet. See also jay2.
J2
abbreviation
- 1. IVR.
- Japan.
JJ
3. Judge.
JJ
4. Justice.
joule
noun
- 1. physics.
- In the SI system: a unit of work and energy, equal to the work done when a force of one newton moves through a distance of one metre in the direction of the force.
