jellyfish |
a water animal with a soft body shaped like a bell. Jellyfish have many tentacles hanging down from their bodies. Most kinds of jellyfish live in the ocean. |
jeopardy |
danger of harm, death, or loss; at risk. |
jerk1 |
any sudden, sharp movement that is not expected or planned. [5 definitions] |
jerky1 |
having sudden starts and stops or other quick movements that are not expected. |
jerky2 |
beef or deer meat that has been cut into long pieces and dried. Drying the meat preserves it so that it can be eaten at a later time. |
jersey |
a knitted shirt that is often worn by people who play sports. A jersey is pulled on over the head. [2 definitions] |
Jerusalem |
the capital city of Israel. |
jest |
a funny saying or action; joke. [2 definitions] |
jester |
someone hired to tell jokes in royal courts during the Middle Ages in Europe. Jesters often made fun of court life. |
Jesus Christ |
the teacher and prophet who founded the Christian faith. He is considered by Christians to be the son of God and the Christ or savior. Jesus lived from about 4 B.C. to 29 A.D. |
jet1 |
a stream of liquid or gas shooting from an opening, usually with great pressure. [3 definitions] |
jet2 |
a deep, shiny black color. |
jet engine |
an engine that causes forward movement by the power of a stream of gases being forced out under pressure in the opposite direction. Jet engines are often used in aircraft. |
jet lag |
a feeling of being very tired or not well after traveling by airplane across different time zones. |
jet-propelled |
using the power of a jet engine or engines. |
jet propulsion |
a way of giving aircraft and some small ships the power to move forward. Jet propulsion forces air and hot gases under high pressure to go through a jet nozzle. |
jet stream |
a narrow band of strong, fast wind several miles above the earth's surface. The jet stream usually flows from west to east. |
jettison |
to throw from a ship or airplane to make it lighter or more stable. [2 definitions] |
jetty1 |
a group of rocks or wooden beams built out into a body of water. Jetties are used to control the flow of water and protect the shore from strong waves. [2 definitions] |
Jew |
a person whose ancestors were the Biblical Hebrews. [2 definitions] |
jewel |
a special stone that has been cut and made smooth; gem. Jewels are used to make jewelry and ornaments. [2 definitions] |