VOCABULARY

3. a secret word or phrase that must be used to gain admission to something.
7. the application of scientific knowledge for practical purposes, especially in industry.
9. stop the continuous progress of (an activity or process).
10. an apparatus using or applying mechanical power and having several parts, each with a definite function and together performing a particular task.
12. websites and applications that enable users to create and share content or to participate in social networking.
15. share or exchange information, news, or ideas.
17. the outside limit of an object, area, or surface; a place or part farthest away from the center of something.
19. the state of being free from danger or threat.
20. an insistent and peremptory request, made as if by right.
22. the action or crime of stealing.

1. take part or intervene in an activity without invitation or necessity.
2. happening or coming immediately.
4. facts provided or learned about something or someone.
5. a particular place or position.
6. the center of interest or activity.
8. depend on with full trust or confidence.
9. make or become better.
11. cut with rough or heavy blows.
13. possession of the means or skill to do something.
14. a means of approaching or entering a place.
16. an identification used by a person with access to a computer, network, or online service.
18. belonging to or for the use of one particular person or group of people only.
21. cause to cover a larger area; make longer or wider.