Definition of

J

  1. (noun, communication) the 10th letter of the Roman alphabet
  2. (noun, quantity) 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

via WordNet, Princeton University

Synonyms of J

joule, watt second

Origin of the word J

  1. the letter is a late modification of Roman -i-, originally a scribal creation in continental M.L. to distinguish small -i- in cursive writing from the strokes of other letters, especially in the final positions of words. But in Eng., -y- was used for this, and -j- was introduced c.1600-1640 to take up the consonantal sound that had evolved from -i… more

via Online Etymology Dictionary, ©2001 Douglas Harper

Note: If you're looking to improve your vocabulary right now, we highly recommend Ultimate Vocabulary Software.

Word of the Moment

Spermophile

any of various terrestrial burrowing rodents of Old and New Worlds; often destroy crops