Vocabulary English

5. of or concerning history; concerning past events.
7. a secret word or phrase that must be used to gain admission to something.
8. living or growing in the natural environment; not domesticated
11. a piece of code which is capable of copying itself and typically has a detrimental effect, such as corrupting the system or destroying data
15. costing a lot of money
16. the coldest season of the year
17. a video camera that inputs to a computer connected to the Internet
19. an inclination toward a particular characteristic or type of behavior.
20. synchronize

1. the state of great comfort and extravagant living.
2. a group consisting of parents and children living together in a household.
3. the activity of killed wild animals or game, especially for food or sport.
4. messages distributed by electronic means
6. a large area covered chiefly with trees and undergrowth.
9. the possibility of suffering harm or injury.
10. it is a feline of greater size and weight
12. contrary to or forbidden by law, especially criminal law.
13. something that is difficult or impossible to understand or explain.
14. a building or room containing collections of books, periodicals, and sometimes films
18. a medicine or treatment for a disease or injury.