| abandon |
If you abandon something that you have, you go away from it without any plan to return to get it. If someone abandons an animal or another person, they leave them and don't plan to ever come back. [1/3 definitions] |
| blue whale |
a mammal that lives in the ocean. Blue whales are the largest kind of animal that has ever lived. They can grow up to 100 feet long and weigh up to 150 tons. Their large mouths have baleen instead of teeth. Blue whales use baleen to filter lots of very small food such as shrimp from ocean water. |
| break |
If someone breaks a record, they go beyond what any other person has done before. For example, maybe they run faster than anyone has ever run before. Or maybe they eat more hot dogs than anyone has ever eaten before. [1/9 definitions] |
| concept |
A concept is a new and different idea that nobody has ever thought of before. [1/2 definitions] |
| constantly |
continuously; without ever stopping. [1/2 definitions] |
| desert2 |
If someone deserts another person, they leave them and stop taking care of them or supporting them. They leave and don't plan to ever come back. If a person deserts something like their ship or their army unit, they leave it when it is in trouble. [1/2 definitions] |
| dinosaur |
one of a group of extinct animals. Some kinds of dinosaurs were the largest animals that ever lived on land. Other dinosaurs were as small as chickens. The first kinds of dinosaurs developed over two hundred million years ago. The last kinds became extinct about sixty-five million years ago. |
| evaporation |
Evaporation is something that happens in nature. It is a kind of process. In this process, water and other liquids turn into gases and go into the air. Sometimes after it rains, you see puddles outside. But later, when the sun shines, the water in the puddles goes away. Do you ever wonder what happens to the water? You can't see it anymore because it has turned into a gas and gone up into the air. This process is called evaporation. |
| ever |
Ever means at any time. If someone asks if you have ever flown in an airplane, they mean at any time in your whole life. [3 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. [1/2 definitions] |
| greedy |
having a very strong desire for ever more money or things. [1/2 definitions] |
| imaginative |
If a person is imaginative, they invent new things and ideas using their minds. They might invent strange animals for a children's book, for example, or a new machine that nobody ever thought of before. Imaginative people are often good at writing stories, or making works of art, or finding solutions to difficult problems. When we say that a thing is imaginative, we mean that someone used their imagination to create it. |
| indigenous |
When people are indigenous to a place, they are the first people ever to live there. If an animal or plant is indigenous to a place, that place has always been its home. It has not been brought by people from some other place in the world. |
| invention |
Invention is the act or process of creating something that no one has ever created before. [1/2 definitions] |
| once |
if ever; whenever; when. [1/4 definitions] |
| record |
A record is the highest level that anyone has ever reached in something, especially in a sport or game. If someone holds the record for eating the most hot dogs, then that person has eaten more hot dogs than anyone else ever has. [1/8 definitions] |
| since |
from then until now (often follows the word "ever"). [1/5 definitions] |
| unknown |
When we talk about "the unknown," we mean places, things, and people that nobody knows or has ever seen or met before. [1/2 definitions] |