A yabby is a small crayfish that is found in creeks, rivers and billabongs in Australia. They can be caught and eaten in much the same way as larger crayfish.
A yacht is a type of fast sailing boat. Sailboats do not have engines or motors, they move because the wind blows them along.
Scientific name: bos grunniens
A yak is a relative of the cow. Yaks live in high mountains, and have long shaggy hair to keep out the cold.
Scientific name: genus: dioscorea
A yam is the tuber of a vine, found in many countries around the world. Yam tubers can grow very big - up to 70kg. Yams have a rough skin that is hard to peel, but much softer flesh inside. Many people call sweet potatoes yams or sweet yams, but they are actually different vegetables. Some variety of yam can be eaten raw, but most need to be cooked. Yams can be fried, boiled, pounded down and made into a dough. They can also be dried and powdered and used to make something similar to instant mashed potato.
A yap is a short, sharp, high pitched bark. Small dogs tend to yap, and can be very annoying for people who live near them.
A yard is an outdoor area surrounded by a fence. Yards can be used to keep animals in, and unwanted visitors out. In suburbia, yards are close to houses and you usually grow a garden in your yard. A yard is also a unit of measurement equalling 3 feet, 36 inches, or 0.9144 metres.
Yarn is made from animal hair, spun into a long, thin string. It can be made in a range of thicknesses and then dyed in any color. People then use the yarn to knit things like socks out of.
A yawn is where your mouth opens wide and you take a deep breath in and out. Yawns just happen by themselves, they are hard to stop. People and animals yawn when they are tired, stressed, overworked or bored, or for no reason at all. Yawning is infectious - if someone near you yawns, you often start yawning too! You might even start to yawn by looking at a photo of someone yawning, so don't stare at the photo of the yawning cat for too long.
A year marks a length of time of approximately 365 days. Each year has four seasons, summer, winter, autumn and spring.