Jam is cooked fruit, preserved with sugar. Jam is delicious spread on toast. In some countries, jam is called jelly.
January is the first month of the year. It has 31 days. The next month of the year is February. In the northern hemisphere January is part of winter, and in the southern hemisphere it is part of summer.
Japanese is anything relating to Japan, someone from Japan or the language spoken in Japan.
A jar is a small container with a lid you can keep things in. Today most jars are made of glass or plastic with a metal or plastic screw-top lid. A long time ago jars used to be made from ceramic or glass, and had lids made out of cork, rubber, cloth tied with string, or glass held on with metal clips and a rubber seal.
Scientific name: jasminum officinale
Jasmine is a group of shrubs and climbing plants, many of which have strongly scented flowers. They are a popular ornamental garden plant. The flowers smell strongest at night. The jasmine most people are familiar with is common jasmine, which is a climbing variety.
Jasper is an opaque silicate that can be virtually any color. It is often used for making jewelry. Some colours are more valuable than others - the jasper in the picture is red jasper.
Jaundice is a yellowing of the skin and the whites of your eyes, caused by an excess of bilirubin. Newborn babies often get slightly jaundiced. It is also a symptom of liver damage.
A javelin is a kind of spear that is usually used in competitive sport, where the person who throws the javelin the furthest wins.
Scientific name: mandible
Your jaw is the bottom part of your face. Your jaw has a separate bone and can move while you keep the rest of your head still. The bones in the picture are a sheep's jawbone and skull.
You are jealous when you have negative thoughts about something being taken away from you. For example, you can be jealous if you think you are going to lose someone you love, or you think someone is getting more attention and will be promoted before you at work. The girl in the picture is jealous the other girls will get the best pieces of cake before she does.