jewel - n. a valuable stone, such as a diamond or emerald

job - n. the work that one does to earn money

join - v. to put together or come together; to become part of or a member of

joint¹ - ad. shared by two or more

joke - n. something done or said to cause others to laugh

judge - v. to form an opinion about; to decide a question, especially a legal² one; n. a public official who decides problems of law in a court jump - v. to push down on the feet and move up quickly into the air

jury³ - n. a group of people chosen to decide what is true in a trial⁴

just - ad. only ("Help me for just a minute."); very shortly⁵ before or after the present ("He just left."); at the same time ("He left just as I came in."); what is right or fair ("The law is just, in my opinion.")