| experiment |
An experiment is a careful test used to discover or understand something that is not known. Scientists often do experiments. [2 definitions] |
| experimental |
having to do with testing or experiments. [2 definitions] |
| expert |
An expert is someone who knows a lot about a particular thing. [3 definitions] |
| expertise |
expert knowledge or skill. |
| expiration |
a coming to an end or close. [2 definitions] |
| expire |
If a permit expires on a certain date, the permit is only good until that date. That date marks the end for that permit. If someone's driver's license has expired, that person has no legal license to drive anymore. They have to get a new license. When something expires, it comes to its end. |
| explain |
If you explain something to someone, you tell them things about it so that they can understand. [4 definitions] |
| explain away |
to make less important by explaining. |
| explanation |
When you give an explanation, you say why or how something happened or how something works. An explanation is also information to help people know or understand something. |
| explicit |
said or written in a clear and direct way. |
| explode |
When something explodes, it suddenly puts out energy with very great force, noise, and heat. [3 definitions] |
| exploit1 |
a deed of daring or courage. |
| exploit2 |
to make full use of and gain from. [2 definitions] |
| exploration |
Exploration is the act of traveling through and finding out about places that you or other people know very little about. This can mean going to places where nobody has ever been before. Sometimes, during exploration, people discover other human beings living in the place they are traveling through and learning about. Sometimes, if the climate is too harsh, they do not find any people living there. [2 definitions] |
| explore |
When you explore a place, you travel across it or go through it so that you can learn about it. [2 definitions] |
| explorer |
An explorer is a person who travels in an area that most people don't know anything about. |
| explosion |
When there is an explosion, it means that something has blown apart with great force. An explosion is also the loud noise that you hear when something blows apart. [2 definitions] |
| explosive |
When something is explosive, it can cause something to break open with a huge burst of energy, heat, and noise. [3 definitions] |
| export |
When people export products, they send them to another country or countries in order to sell them there. [2 definitions] |
| expose |
When you expose something, you make it visible by taking the covering off it. If you take off the carpet in a room, you will expose the floor. [4 definitions] |
| exposition |
a statement with many details that is used to explain something. [2 definitions] |