Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun j

2 senses of j

Sense 1
joule, J, watt second -- (a unit of electrical energy equal to the work done when a current of one ampere passes through a resistance of one ohm for one second)
       => work unit, heat unit, energy unit -- (a unit of measurement for work)

Sense 2
J, j -- (the 10th letter of the Roman alphabet)
       => letter, letter of the alphabet, alphabetic character -- (the conventional characters of the alphabet used to represent speech; "his grandmother taught him his letters")