| birch |
A birch is a kind of tree with smooth bark that is often white or gray. Birches lose their leaves in the fall and grow new leaves in the spring. The wood from birch trees is sometimes used to make furniture. |
| bird |
A bird is an animal that has two wings, two feet, and a body covered with feathers. Most birds can fly. Robins, chickens, and ducks are birds. |
| birdhouse |
A birdhouse is a place for a bird to build its nest in. Birdhouses are made for birds by people, and they often look like a small house. |
| birth |
Birth is when a new baby, or new baby animal, enters the world. |
| birthday |
The date when you were born is your birthday. If you were born on June 16, then June 16 every year is your birthday. Americans usually celebrate their birthdays with a cake and often a party. |
| bison |
A bison is a big, powerful animal that is a member of the same animal family as the cow. It has a large head and body, and it has horns and hoofs. In the United States, bison are often called buffalo, but their true name is bison. |
| bit2 |
A bit is a very small amount or a little piece of something. [2 definitions] |
| bite |
When you bite something, you cut into it with your teeth. If you're going to eat an apple, the first thing you do is bite it. [3 definitions] |
| bitter |
Bitter describes a certain kind of taste in the mouth. It is like the taste of berries before they become sweet. A strong cup of tea or dark chocolate with no sugar can also have a bitter taste. |
| black |
Black is the color of the night sky when you can't see the moon and the clouds cover the stars. When there is no light at all, you see only black. [2 definitions] |
| blackboard |
A blackboard is a smooth, dark, hard surface that is often hung on a wall in a school classroom. Teachers use it to write on with chalk. A blackboard might be black, but more often it is green. |
| Black Sea |
The Black Sea is a large body of water located between the country of Ukraine to the north and the country of Turkey to the south. The Black Sea is not really black, but sometimes the water can look very dark. On a map, the Black Sea looks like a big lake, but the water is salty, and it connects to another sea, which connects to the Atlantic Ocean. |
| blade |
A blade is a piece of metal used for cutting. The sharp part of a knife is its blade. Swords, scissors, and razors also have blades. |
| blame |
When you blame someone for some bad thing that happened, you say that they did it or that it is their fault. |
| blanket |
A blanket is something to keep you warm when you are in bed. It is a large piece of thick material that is often made of wool. |
| bleach |
Bleach is a strong chemical liquid that takes away the color of things and can also help make them clean. People sometimes use bleach when they do laundry because they want white things to look as white as they can. |
| bleed |
When a person is bleeding, it means that they are losing blood from some part of their body. If we say that part of a person's body is bleeding, like their arm or their finger, we mean that blood is coming out of it. |
| blind |
A blind is a window cover. Blinds keep out the light. [2 definitions] |
| blink |
When you blink, your eyes close and then open again very quickly. When we blink, it happens so fast that we usually don't notice it. Blinking is important, though, because it keeps our eyes from getting dry. [2 definitions] |
| block |
A piece of wood that has flat sides is called a block. Young children usually love to play with small blocks. Other things of a similar shape are also called blocks. There are blocks of ice, blocks of stone, and blocks of concrete. [3 definitions] |
| blog |
A blog is something that people write and let other people read on a website. When people have a blog, they write things every day or very often. They write about something they have done, or that they like, or something that they just think is interesting. |