the main subject that a person studies in college

staying the same, with no big changes or problems

to stop doing something.

doing a sport or activity for money, as a job

the ability to do something that frightens one

to work hard in order to achieve something

the job of designing and building, machines or things such as roads and bridges

an ability, to do something very well because you have learned it

to make you feel that you want to achieve something or create something

to achieve something that you want

to show someone the way, by going in front of him or her

make a regular sound or movement of the heart

patterns of colors in the sky that can be seen at night in the northern pole

experimenting until a solution is found

confident and not afraid

done to earn enough money: to live

an opportunity to do something

choose what you are going to do after thinking about it

to be owned, by someone

an official document containing your personal details, which you need to show when you enter or leave a country

very bad and cause people to be worried or afraid

a person who is very skilled at doing something or who knows a lot about a particular subject