Extinctions are events where a species of animal or plant goes extinct. This is a very serious issue because it means that the species is no longer alive and it can't be replaced.
To rediscover something is to find it again after you've forgotten about it. Sometimes you might rediscover something that you lost, or you might find it again after it has been hidden away.
Skilling is the process of learning a new skill. When you skil, you are gradually learning the information and skills that are necessary to do the task that you are trying to learn.
Brainpower is a term that is often used to describe the ability to think quickly and solve problems. It is often used to describe the ability to think creatively.
A bookkeeper is a person who is responsible for keeping track of the finances of a company or organization. They make sure that all the money that is earned is properly accounted for and that the bills are paid.
To counteract something is to do the opposite of it. If you counteract the effects of alcohol, you're trying to reduce the number of problems that it causes.
Idiotic means stupid or foolish. When you call someone an idiotic idea, you are criticizing them for something that is obviously not going to work.
To flex is to stretch or to bend a muscle. When you flex your arm, you are stretching the muscle.
To bug is to spy on someone or to listen to their conversations without their permission. Sometimes people use the word to describe the act of entering someone's home without their permission.