| bumblebee |
A bumblebee is a large, furry bee that often has black and yellow stripes. Bumblebees make a loud humming or buzzing noise when they fly. |
| bump |
When you bump something, you knock against it or hit it, often by accident. [4 definitions] |
| bumper |
A bumper is the heavy bar on the front and back of cars and trucks. A bumper helps to protect the vehicle from damage if it hits something. |
| bumper car |
A bumper car is one of the very small electric cars that people can ride in at a fair or amusement park. The little cars are all together inside one place. People get in the cars and ride them around trying to bump into other cars or escape from being bumped. The cars are designed to be safe and fun. |
| bump into |
(informal) to meet by accident or chance. |
| bumpy |
When something is bumpy, it is covered with bumps. It is not flat and smooth. [2 definitions] |
| bun |
A bun is a type of bread. Buns are small and are made for one person to eat at one time. Buns are sometimes round but also come in different shapes. Americans usually eat hamburgers and hot dogs inside a bun. These types of buns are plain in taste, but other types of buns are sweet. Some of these have icing on them or small fruits baked inside. [2 definitions] |
| bunch |
A bunch is a group of things that are alike and joined together. Bananas and grapes grow in bunches. [2 definitions] |
| bundle |
A bundle is a number of things that have been tied together. [2 definitions] |
| bundle up |
to dress in warm, thick clothing. |
| bungalow |
a small, cozy house; cottage. |
| bunk1 |
A bunk is a small, single bed that is attached to a wall, or it is one of two beds held up by a frame that supports one bed on top of the other. |
| bunny |
"Bunny" is another word for "rabbit." A rabbit is an animal with long ears, a short tail, and soft fur. We call a rabbit a "bunny" when we think it is cute and sweet. |
| Bunsen burner |
a burner that has holes at the bottom where air enters, mixes with gas, and makes a hot blue flame. Bunsen burners are used in laboratory experiments. |
| bunt1 |
to tap with a baseball or softball bat so that the ball lands close by. [2 definitions] |
| buoy |
a float attached by line to the bottom of a body of water to mark a location. [3 definitions] |
| buoyancy |
the capacity to float or rise to the top in a liquid or gas. |
| buoyant |
When something is buoyant, it is able to float, or it can keep something else floating. |
| bur |
the prickly and sharp covering for the seed of some plants. [2 definitions] |
| burden1 |
A burden is something you carry that is usually heavy. Sometimes a burden is something in your life that you have to live with or take care of even though it is difficult and not fun. [2 definitions] |
| bureau |
a chest of drawers. [3 definitions] |