Read the definitions carefully and select the correct words.
1. a very serious disease in which cells in one part of the body start to grow in a way that is not normal
2. an organization that gives money, goods, or help to people who are poor, sick etc
3. if one company or country competes with another, it tries to get people to buy its goods or services rather than those available from another company or country
4. something that happens as a result of a particular action or set of conditions
5. to give something, especially money, to a person or an organization in order to help them
6. something, especially money, that you give to a person or an organization in order to help them
7. to make someone do something they do not want to do
8. without a home
9. a very strong feeling of liking something; a hobby, an activity, etc
10. having or showing strong feelings of enthusiasm for something or belief in something
11. to collect, to gather, to get or to put together money
12. instead of something or someone
13. having stopped working, usually because of your age
14. a particular large group of people who share laws, organizations, customs etc
15. done, made or given willingly, without being forced or paid to do it
16. someone who does a job willingly without being paid