- jargonn.Confused, unintelligible speech or highly technical speech
- jaundicen.A morbid condition, due to obstructed excretion of bile or characterized by yellowing of the skin
- jeopardizev.To imperil
- Jingon.One of a party in Great Britain in favor of spirited and demonstrative foreign policy
- jocoseadj.Done or made in jest
- jocularadj.Inclined to joke
- jogglen.A sudden irregular shake or a push causing such a shake
- journalizev.To keep a diary
- jovialadj.Merry
- jubilationn.Exultation
- judgmentn.The faculty by the exercise of which a deliberate conclusion is reached
- judicaturen.Distribution and administration of justice by trial and judgment
- judicialadj.Pertaining to the administration of justice
- judiciaryn.That department of government which administers the law relating to civil and criminal justice
- judiciousadj.Prudent
- jugglev.To play tricks of sleight of hand
- juggleryn.The art or practice of sleight of hand
- jugularadj.Pertaining to the throat
- juicyadj.Succulent
- junctionn.The condition of being joined
- juncturen.An articulation, joint, or seam
- juntan.A council or assembly that deliberates in secret upon the affairs of government
- juridicaladj.Assumed by law to exist
- jurisdictionn.Lawful power or right to exercise official authority
- jurisprudencen.The science of rights in accordance with positive law
- jurorn.One who serves on a jury or is sworn in for jury duty in a court of justice
- joustv.To engage in a tilt with lances on horseback
- justificationn.Vindication
- juvenileadj.Characteristic of youth
- juxtaposev.To place close together