| jungle gym |
A jungle gym is a simple outdoor structure that kids can play on. Kids can climb on it and swing their bodies while holding on to its metal bars. |
| junior |
"Junior" means "younger." The word "junior" is often used after the name of a son when the son's father has the same name. For example, a man named "Marvin Green" might give his son the name "Marvin Green Junior." The word "Junior" at the end of a name is often written as "Jr." but still pronounced "Junior." [3 definitions] |
| junior high school |
a school between elementary school and high school; middle school. Junior high school usually includes grades seven, eight, and nine. |
| juniper |
an evergreen shrub or small tree with cones that produce berries. |
| junk1 |
Junk is trash or things that have little worth, especially old things that are broken or that you never use anymore. [2 definitions] |
| junk2 |
a boat found in China with a high stern and flat bottom, driven by square sails. |
| junk food |
snack food that does not give the body many nutrients. Junk food usually contains a great deal of fat or sugar. |
| junk mail |
mail that is not wanted or asked for. Letters asking for money or trying to sell products are usually considered junk mail. |
| junkyard |
a yard or lot in which junk is collected, kept, and sold. Old metal and cars are often found in a junkyard. |
| Juno |
the goddess of marriage in Roman mythology. Juno was the wife and sister of Jupiter. In Greek mythology, Juno is called Hera. |
| Jupiter |
Jupiter is a large, round thing out in space. Like our Earth, it is a planet that goes around the sun. Jupiter is the largest of all these planets. Planet Earth could fit inside Jupiter many times. |
| juror |
a person who is a member of a jury. |
| jury |
A jury is a group of people in a court of law who listen to the facts of a case and decide if a person is guilty or not guilty of a crime. |
| just |
If a person is just, they are fair and honest. [6 definitions] |
| just about |
practically; almost; nearly. |
| justice |
Justice is fairness. If there is justice in a society, everyone is treated in an equal and fair manner. [3 definitions] |
| justify |
When you justify something that happened, you think of good reasons for why it happened. You try to make it OK that it happened. If you justify something you want to do, you think of good reasons for why you should do it. |
| jut |
to project or stick out sharply (often followed by "out"). |
| jute |
a thick, strong fiber taken from a plant and used to make rope and rough cloth. [2 definitions] |
| juvenile |
young; not grown up. [4 definitions] |
| K3 |
symbol of the chemical element potassium. |